gResistor – CALCULATOR FOR RESISTOR COLOR CODE

If you want to calculate the value of resistor from its color code, you can use gResistor.
From the gResistor aplication, you can choose (1) Type of Resistor, such as 4 band, 5 band, and 6 band; (2) Value 1, such as: Black, Brown, Red, Orange, Yellow, Green, Blue, Violet, Gray, and White; (3) Value 2, such as Black, Brown, Red, Orange, Yellow, Green, Blue, Violet, Gray, and White; (4) Value 3, such as: Black, Brown, Red, Orange, Yellow, Green, Blue, Violet, Gray, and White; (5) Multiply, such as: Black, Brown, Red, Orange, Yellow, Green, Blue, and Violet; (6) tolerance, such as: None, Brown, Red, Green, Blue, Violet, Gold, Sylver; (7) temp. such as: None, Brown, Red, Orange, Yellow.
You can download gResistor from: http://www.roroid.ro/index.php?option=com_content&view=article&id=1:gresistor&catid=1:software-projects&Itemid=2

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ONLINE Latex Equation Editor

From this webpage http://www.numberempire.com/texequationeditor/equationeditor.php you can easily edit latex equation.
Latex equation that you can edit such as:
Spaces: Thin, Medium, Thick, Negative.
Style: Equation Only = Blackboard, Bold, Bold Greek, Italic, Roman, Fraktur; Text Only = Typewriter, Roman, Upright, Italic, Slanted, SMALL CAPS, Emphasis.
Functions: arg, deg, det, dim, gcd, hom, ker, Pr, sup; Trig = sin, cos, tan, csc, sec, cot, sinh, cosh, tanh, coth, arcsin, arccos, arctan; Limits = lim, liminf, limsup, max, min, inf; Logs = exp, lg, ln, log, log e, log 10.
Foreign : œ , Œ , æ , Æ , å , Å , ß , (§) , (¶) , o , O , l , L , dag , ddag , © , £ .
Symbols : plus or minus, minus or plus, times, divided by, asterrisk, star, circle, degree symbol, bullet, center dot, u plus, square cap, square cup, vee, wedge, diamond, big triangle up, big triangle down, triangle left, triangle right, large triangle left, large triangle right, circle plus, circle minus, circle times, circle splash, circle dot, big circle, double dagger, coproduct.

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Where can I find the tool for Numerical equation solving ?

You can use Genius Math Tool for Numerical equation solving. You can download Genius Math Tool from http://www.jirka.org/genius.html

There are many calculations that you can do using Genius Math Tool beside Numerical equation solving, such as:

Basic:
Ask a question and return a string.  Optionally pass in a default; Compose two functions; Compose a function with itself n times, passing x as argument, and returning x if n == 0; Parse and evaluate a string; Get current modulo from the context outside the function; Identity function, returns its argument; Make integer (0 or 1) from a boolean value; Check if argument is a boolean (and not a number); Check if a variable or function is defined; Check if argument is a function; Check if argument is a function or an identifier; Check if argument is a function reference; Check if argument is a matrix; Check if argument is a null; Check if argument is a text string; Check if argument is a number; Parse a string (but do not execute); Mark all currently defined variables as protected.  They will be treated as system defined variables from now on; Set flags for a function, currently “PropagateMod” and “NoModuloArguments”; Set the category and help description line for a function Sets up a help alias; Undefine all unprotected (user defined) global variables and parameters.  Does not reset or change protected (system) parameters; Return a vector of all global unprotected (user defined) variable names; Changes current directory; Display a string and an expression; Prints a string to the error stream; Exits the program; The false boolean value; Displays the user manual; Prints an expression; Prints an expression without a trailing newline; Protect a variable from being modified.  It will be treated as a system defined variable from now on.  Protected parameters can still be modified; Set a global variable; Make a string; The true boolean value; Undefine a variable (including all locals and globals of the same name); Unprotect a variable from being modified.  It will be treated as a user defined variable from now on; Return version as a 3-vector; Waits a specified number of seconds; Gives the warranty information.

Parameters:
Tolerance of the Chop function; How many iterations to try to find the limit for continuity and limits; How many successive steps to be within tolerance for calculation of continuity; Tolerance for continuity of functions and for calculating the limit; How many iterations to try to find the limit for derivative; How many successive steps to be within tolerance for calculation of derivative; Tolerance for calculating the derivatives of functions; Tolerance of the ErrorFunction; Floating point precision; Print full expressions, even if more than a line; Tolerance of the GaussDistribution function; Integer output base; Number of extra Miller-Rabin tests to run on a number before declaring it a prime in IsPrime; If to draw legends or not on line plots; Line plotting window (limits) as a 4-vector of the form [x1,x2,y1,y2]; Maximum digits to display; Maximum errors to display; If true, mixed fractions are printed; The function used for numerical integration in NumericalIntegral; Steps to perform in NumericalIntegral; Display 0.0 when floating point number is less than 10^-x (0=never chop); Only chop numbers when another number is greater than 10^-x; Output style: normal, latex, mathml or troff; Convert all results to floats before printing; Use scientific notation; How many iterations to try for InfiniteSum and InfiniteProduct; How many successive steps to be within tolerance for InfiniteSum and InfiniteProduct; Tolerance for InfiniteSum and InfiniteProduct; Surface plotting window (limits) as a 6-vector of the form [x1,x2,y1,y2,z1,z2]; Normalize vectorfields if true.  That is, only show direction and not magnitude.

Constants:
Catalan’s Constant (0.915…); Euler’s Constant gamma; The Golden Ratio; Free fall acceleration; The natural number e; The number pi.

Numeric:
Absolute value; Replace very small number with zero; Calculates the conjugate; Get the denominator of a rational number; Return the fractional part of a number; Get the imaginary part of a complex number; Division w/o remainder; Check if argument is a complex (non-real) number; Check if argument is a possibly complex rational number; Check if argument is a floating point number (non-complex); Check if argument is a possibly complex integer; Check if argument is an integer (non-complex); Check if argument is a non-negative real integer; Check if argument is a positive real integer; Check if argument is a rational number (non-complex); Check if argument is a real number; Get the numerator of a rational number; Get the real part of a complex number; Return the sign (-1,0,1); Get the lowest integer more than or equal to n; The exponential function; Make number a float; Get the highest integer less than or equal to n; The natural logarithm; Logarithm of any base (calls DiscreteLog if in modulo mode), if base is not given, e is used; Logarithm of x base 10; Logarithm of x base 2; Returns the maximum of arguments or matrix; Returns the minimum of arguments or matrix; Generate random float; Generate random integer; Round a number; The square root; Truncate number to an integer (return the integer part).

Trigonometry:
The arccos (inverse cos) function; The arccosh (inverse cosh) function; The arccot (inverse cot) function; The arccoth (inverse coth) function; The inverse cosecant function; The inverse hyperbolic cosecant function; The inverse secant function; The inverse hyperbolic secant function; The arcsin (inverse sin) function; The arcsinh (inverse sinh) function; Calculates the arctan function; Calculates the arctan2 function (arctan(y/x) if x>0); The arctanh (inverse tanh) function; Calculates the cosine function; Calculates the hyperbolic cosine function; The cotangent function; The hyperbolic cotangent function; The cosecant function; The hyperbolic cosecant function; The secant function; The hyperbolic secant function; Calculates the sine function; Calculates the hyperbolic sine function; Calculates the tan function; The hyperbolic tangent function.

Number Theory:
Are a and b relatively prime?; Return the nth Bernoulli number; Find the x that solves the system given by the vector a and modulo the elements of m, using the Chinese Remainder Theorem; Given two factorizations, give the factorization of the product, see Factorize; Convert a vector of values indicating powers of b to a number; Convert a number to a vector of powers for elements in base b; Find discrete log of n base b in F_q where q is a prime using the Silver-Pohlig-Hellman algoritm; Checks divisibility (if m divides n); Compute phi(n), the Euler phi function, that is the number of integers between 1 and n relatively prime to n; Return n/d but only if d divides n else returns garbage (this is faster than writing n/d); Return factorization of a number as a matrix; Return all factors of a number; Attempt fermat factorization of n into (t-s)*(t+s), returns t and s as a vector if possible, null otherwise; Find the first primitive element in F_q (q must be a prime); Find a random primitive element in F_q (q must be a prime); Compute discrete log base b of n in F_q (q a prime) using the factor base S.  S should be a column of primes possibly with second column precalculated by IndexCalculusPrecalculation; Run the precalculation step of IndexCalculus for logarithms base b in F_q (q a prime) for the factor base S (where S is a column vector of primes).  The logs will be precalculated and returned in the second column; Tests if an integer is even; Test if Mp is a Mersenne prime using a table; Tests if a rational number is a perfect power; Tests if an integer is odd; Check a number for being any perfect power (a^b); Check a number for being a perfect square; Tests primality of integers, for numbers greater than 25*10^9 false positive is with low probability depending on IsPrimeMillerRabinReps; Check if g is primitive in F_q, where q is a prime. If q is not prime results are bogus; Check if g is primitive in F_q, where q is a prime and f is a vector of prime factors of q-1.  If q is not prime results are bogus; If n is a pseudoprime base b but not a prime, that is if b^(n-1) == 1 mod n; Test if n is a strong pseudoprime to base b but not a prime; Calculate the Jacobi symbol (a/b) (b should be odd); Calculate the Jacobi symbol (a/b) with the Kronecker extension (a/2)=(2/a) when a odd, or (a/2)=0 when a even; Return the residue of a mod n with the least absolute value (in the interval -n/2 to n/2); Calculate the Legendre symbol (a/p); Test if Mp is a Mersenne prime using the Lucas-Lehmer test; Returns the n’th Lucas number; Return all maximal prime power factors of a number; Vector with the known Mersenne prime exponents; Use the Miller-Rabin primality test on n, reps number of times.  The probability of false positive is (1/4)^reps; Use the Miller-Rabin primality test on n with enough bases that assuming the Generalized Reimann Hypothesis the result is deterministic; Returns inverse of n mod m; Return the Moebius mu function evaluated in n; Returns the least prime greater than n (if n is positive); Returns the padic valuation (number of trailing zeros in base p); Compute a^b mod m; Return the n’th prime (up to a limit); Return all prime factors of a number; Pseudoprime test, true iff b^(n-1) == 1 (mod n); Removes all instances of the factor m from the number n; Find discrete log of n base b in F_q where q is a prime using the Silver-Pohlig-Hellman algoritm, given f being the factorization of q-1; Find square root of n mod p (a prime). Null is returned if not a quadratic residue; Run the strong pseudoprime test base b on n; Greatest common divisor; Least common multiplier.

Matrix Manipulation:
Apply a function over all entries of a matrix and return a matrix of the results; Apply a function over all entries of 2 matrices (or 1 value and 1 matrix) and return a matrix of the results; Gets the columns of a matrix as a horizontal vector; Remove column(s) and row(s) from a matrix; Calculate the kth compund matrix of A; Count the number of zero columns in a matrix; Delete a column of a matrix; Delete a row of a matrix; Gets the diagonal entries of a matrix as a column vector; Get the dot product of two vectors (no conjugates); Expands a matrix just like we do on unquoted matrix input; Get the hermitian product of two vectors; Make an identity matrix of a given size; Return the index complement of a vector of indexes; Is a matrix diagonal; Check if a number or a matrix is 1 or identity respectively; Is a matrix lower triangular; Check if a matrix is an integer (non-complex) matrix; Check if a matrix is nonnegative, that is if each element is nonnegative; Check if a matrix is positive, that is if each element is positive; Check if a matrix is a rational (non-complex) matrix; Check if a matrix is a real (non-complex) matrix; Is a matrix square; Is a matrix upper triangular; Check if a matrix is a matrix of numbers; Is argument a horizontal or a vertical vector; Check if a number or a matrix is all zeros; Zero out entries above the diagonal; Make diagonal matrix from a vector; Make column vector out of matrix by putting columns above each other; Calculate the product of all elements in a matrix; Calculate the sum of all elements in a matrix; Calculate the sum of squares of all elements in a matrix; Get the outer product of two vectors; Reverse elements in a vector; Calculate sum of each row in a matrix; Calculate sum of squares of each row in a matrix; Gets the rows of a matrix as a vertical vector; Make new matrix of given size from old one; Sort vector elements; Removes any all-zero columns of M; Removes any all-zero rows of M; Return column(s) and row(s) from a matrix; Swap two rows in a matrix; Zero out entries below the diagonal; Get the number of columns of a matrix; Get the number of elements of a matrix; Make an matrix of all ones (or a row vector); Get the number of rows of a matrix; Make an matrix of all zeros (or a row vector).

Linear Algebra:
Get the auxilliary unit matrix of size n; Evaluate (v,w) with respect to the bilinear form given by the matrix A; Return a function that evaluates two vectors with respect to the bilinear form given by A; Get the characteristic polynomial as a vector; Get the characteristic polynomial as a function; Get a basis matrix for the columnspace of a matrix; Return the commutation matrix K(m,n) which is the unique m*n by m*n matrix such that K(m,n) * MakeVector(A) = MakeVector(A.’) for all m by n matrices A; Companion matrix of a polynomial (as vector); Conjugate transpose of a matrix (adjoint); Calculate convolution of two horizontal vectors; Calculate convolution of two horizontal vectors; CrossProduct of two vectors in R^3; Get the determinantal divisors of an integer matrix (not its characteristic); Direct sum of matrices; Direct sum of a vector of matrices; Get the eigenvalues of a matrix (Currently only for up to 4×4 or triangular matrices); Get the eigenvalues and eigenvectors of a matrix (Currently only for up to 2×2 matrices); Apply the Gram-Schmidt process (to the columns) with respect to inner product given by B (if not given use hermitian product); Hankel matrix; Hilbert matrix of order n; Get the image (columnspace) of a linear transform; Get the Inf Norm of a vector; Get the invariant factors of a square integer matrix (not its characteristic); Inverse Hilbert matrix of order n; Is a matrix hermitian; Test if a vector is in a subspace; Is a matrix (or number) invertible (Integer matrix is invertible iff it’s invertible over the integers); Is a matrix (or number) invertible over a field; Is a matrix normal; Is a matrix positive definite; Is a matrix positive semidefinite; Is a matrix skew-hermitian; Is a matrix unitary; Get the jordan block corresponding to lambda and n; Get the kernel (nullspace) of a linear transform; Get the LU decomposition of A and store the result in the L and U which should be references.  If not possible returns false; Get the i-j minor of a matrix; Return the columns that are not the pivot columns of a matrix; Get the p Norm (or 2 Norm if no p is supplied) of a vector; Get the nullspace of a matrix; Get the nullity of a matrix; Get the orthogonal complement of the columnspace; Return pivot columns of a matrix, that is columns which have a leading 1 in rref form, also returns the row where they occur; Projection of vector v onto subspace W given a sesquilinear form B (if not given use hermitian product); Get the QR decomposition of A, returns R and Q can be a reference; Get the rank of a matrix; Return the Rayleigh quotient of a matrix and a vector; Compute an eigenvalue using the Rayleigh Quotient Iteration method until we are epsilon from eigenvalue or for maxiter iterations; Rosser matrix, a classic symmetric eigenvalue test problem; Rotation around origin in R^2; Rotation around origin in R^3 about the x-axis; Rotation around origin in R^3 about the y-axis; Rotation around origin in R^3 about the z-axis; Get a basis matrix for the rowspace of a matrix; Evaluate (v,w) with respect to the sesquilinear form given by the matrix A; Return a function that evaluates two vectors with respect to the sesquilinear form given by A; Smith Normal Form for fields (will end up with 1′s on the diagonal); Smith Normal Form for square integer matrices (not its characteristic); Solve linear system Mx=V, return solution V if there is a unique solution, null otherwise.  Extra two reference parameters can optionally be used to get the reduced M and V; Return the Toeplitz matrix constructed given the first column c and (optionally) the first row r; Calculate the trace of a matrix; Transpose of a matrix; Return the Vandermonde matrix; The angle of two vectors, given an inner product; The direct sum of the vector spaces M and N; Intersection of the subspaces given by M and N; The sum of the vector spaces M and N, that is {w | w=m+n, m in M, n in N}; Get the classical adjoint (adjugate) of a matrix; Compute the Column Reduced Echelon Form; Get the determinant of a matrix; Get the row echelon form of a matrix; Get the reduced row echelon form of a matrix.

Combinatorics:
Get n’th catalan number; Get all combinations of k numbers from 1 to n as a vector of vectors; Double factorial: n(n-2)(n-4)…; Factorial: n(n-1)(n-2)…; Falling factorial: (n)_k = n(n-1)…(n-(k-1)); Calculate n’th Fibonacci number; Calculate the Frobenius number for a coin problem; Galois matrix given a linear combining rule (a_1*x_+…+a_n*x_n=x_(n+1)); Use greedy algorithm to find c, for c . v = n.  (v must be sorted); Harmonic Number, the nth harmonic number of order r; Hofstadter’s function q(n) defined by q(1)=1, q(2)=1, q(n)=q(n-q(n-1))+q(n-q(n-2)); Compute linear recursive sequence using galois stepping; Calculate multinomial coefficients; Get combination that would come after v in call to combinations, first combination should be [1:k]; Get the pascal’s triangle as a matrix; Get all permutations of k numbers from 1 to n as a vector of vectors; (Pochhammer) Rising factorial: (n)_k = n(n+1)…(n+(k-1)); Stirling number of the first kind; Stirling number of the second kind; Subfactorial: n! times sum_{k=1}^n (-1)^k/k!; Calculate the nth triangular number; Calculate combinations (binomial coefficient); Calculate permutations.

Calculus:
Integration of f by Composite Simpson’s Rule on the interval [a,b] with n subintervals with error of max(f””)*h^4*(b-a)/180, note that n should be even; Integration of f by Composite Simpson’s Rule on the interval [a,b] with the number of steps calculated by the fourth derivative bound and the desired tolerance; Attempt to calculate derivative by trying first symbolically and then numerically; Return a function which is the even periodic extension of f defined on the interval [0,L]; Return a function which is a Fourier series with the coefficients given by the vectors a (sines) and b (cosines).  Note that a@(1) is the constant coefficient!; Try to calculate an infinite product for a single parameter function; Try to calculate an infinite product for a double parameter function with func(arg,n); Try to calculate an infinite sum for a single parameter function; Try to calculate an infinite sum for a double parameter function with func(arg,n); Try and see if a real-valued function is continuous at x0 by calculating the limit there; Test for differentiability by approximating the left and right limits and comparing; Calculate the left limit of a real-valued function at x0; Calculate the limit of a real-valued function at x0.  Tries to calculate both left and right limits; Integration by midpoint rule; Attempt to calculate numerical derivative; Numerically compute the coefficients for a cosine Fourier series for a function on [0,L] up to the Nth coefficient; Return a function which is the Fourier cosine series of f on [0,L] with coefficients up to N computed numerically; Numerically compute the coefficients for a Fourier series with half-period L up to the Nth coefficient; Return a function which is the Fourier series of f with half-period L with coefficients up to N computed numerically; Numerically compute the coefficients for a sine Fourier series for a function on [0,L] up to the Nth coefficient; Return a function which is the Fourier sine series of f on [0,L] with coefficients up to N computed numerically; Integration by rule set in NumericalIntegralFunction of f from a to b using NumericalIntegralSteps steps; Attempt to calculate numerical left derivative; Attempt to calculate the limit of f(step_fun(i)) as i goes from 1 to N; Attempt to calculate numerical right derivative; Return a function which is the odd periodic extension of f defined on the interval [0,L]; Compute one-sided derivative using five point formula; Compute one-sided derivative using three-point formula; Return a function which is the periodic extension of f defined on the interval [a,b]; Calculate the right limit of a real-valued function at x0; Compute two-sided derivative using five-point formula; Compute two-sided derivative using three-point formula.

Functions:
argument (angle) of complex number; Dirichlet kernel of order n; Returns 1 iff all elements are zero; The error function, 2/sqrt(pi) * int_0^x e^(-t^2) dt; Fejer kernel of order n; The Gamma function (only real values implemented); Returns 1 iff all elements are equal; Find the first value where f(x)=0; Moebius mapping of the disk to itself mapping a to 0; Moebius mapping using the cross ratio taking z2,z3,z4 to 1,0, and infinity respectively; Moebius mapping using the cross ratio taking infinity to infinity and z2,z3 to 1 and 0 respectively; Moebius mapping using the cross ratio taking infinity to 1 and z3,z4 to 0 and infinity respectively; Moebius mapping using the cross ratio taking infinity to 0 and z2,z4 to 1 and infinity respectively; Poisson kernel on D(0,1) (not normalized to 1, that is integral of this is 2pi); Poisson kernel on D(0,R) (not normalized to 1); The Riemann zeta function (only real values implemented); The unit step function = 0 for x<0, 1 otherwise.  This is the integral of the Dirac Delta function; The cis function, that is cos(x)+i*sin(x); Convert degrees to radians; Convert radians to degrees.

Equation Solving:
Find roots of a cubic polynomial (given as vector of coefficients); Use classical Euler’s method to numerically solve y’=f(x,y) for initial x0,y0 going to x1 with n increments, returns y at x1; Find root of a function using the bisection method; Find root of a function using the method of false position; Find root of a function using the Muller’s method; Find root of a function using the secant method; Find roots of a polynomial (given as vector of coefficients); Find roots of a quadratic polynomial (given as vector of coefficients); Find roots of a quartic polynomial (given as vector of coefficients); Use classical non-adaptive Runge-Kutta of fourth order method to numerically solve y’=f(x,y) for initial x0,y0 going to x1 with n increments, returns y at x1.

Statistics:
Calculate average of an entire matrix; Integral of the GaussFunction from 0 to x (area under the normal curve); The normalized Gauss distribution function (the normal curve); Calculate median of an entire matrix; Calculate the population standard deviation of a whole matrix; Calculate average of each row in a matrix; Calculate median of each row in a matrix; Calculate the population standard deviations of rows of a matrix and return a vertical vector; Calculate the standard deviations of rows of a matrix and return a vertical vector; Calculate the standard deviation of a whole matrix.

Polynomials:
Add two polynomials (vectors); Divide polynomial p by q, return the remainder in r; Check if a vector is usable as a polynomial; Multiply two polynomials (as vectors); Run newton’s method on a polynomial to attempt to find a root, returns after two successive values are within epsilon or after maxn tries (then returns null); Take second polynomial (as vector) derivative; Take polynomial (as vector) derivative; Make function out of a polynomial (as vector); Make string out of a polynomial (as vector); Subtract two polynomials (as vectors); Trim zeros from a polynomial (as vector).

Set Theory:
Returns a set theoretic intersection of X and Y (X and Y are vectors pretending to be sets); Returns true if the element x is in the set X (where X is a vector pretending to be a set); Returns true if X is a subset of Y; Returns a set where every element of X appears only once; Returns a set theoretic difference X-Y (X and Y are vectors pretending to be sets); Returns a set theoretic union of X and Y (X and Y are vectors pretending to be sets).

Miscellaneous:
Convert a vector of ASCII values to a string; Convert a vector of 0-based alphabet values (positions in the alphabet string) to a string; Convert a string to a vector of ASCII values; Convert a string to a vector of 0-based alphabet values (positions in the alphabet string), -1′s for unknown letters.

Symbolic Operations:
Attempt to symbolically differentiate the function f, where f is a function of one variable; Attempt to symbolically differentiate the function f, where f is a function of one variable, returns null if unsuccessful but is silent; Attempt to symbolically differentiate a function n times; Attempt to symbolically differentiate a function n times quietly and return null on failure; Attempt to construct the taylor approximation function around x0 to the nth degree.

Plotting:
Plot a function with a line.  First come the functions (up to 10) then optionally limits as x1,x2,y1,y2; Plot a parametric complex valued function with a line. First comes the function that returns x+iy then optionally the t limits as t1,t2,tinc, then optionally the limits as x1,x2,y1,y2; Show the line plot window and clear out functions; Draw a line from x1,y1 to x2,y2.  x1,y1,x2,y2 can be replaced by a n by 2 matrix for a longer line; Plot a parametric function with a line. First come the functions for x and y then optionally the t limits as t1,t2,tinc, then optionally the limits as x1,x2,y1,y2; Clear all the slopefield solutions; Draw a solution for a slope field starting at x,y and using dx as increment; Draw a slope field.  First comes the function dy/dx in terms of x and y (or a complex z) then optionally the limits as x1,x2,y1,y2; Plot a surface function which takes either two arguments or a complex number.  First comes the function then optionally limits as x1,x2,y1,y2,z1,z2; Clear all the vectorfield solutions; Draw a solution for a vector field starting at x,y, using dt as increment for tlen units; Draw a vector field.  First come the functions dx/dt and dy/dt in terms of x and y then optionally the limits as x1,x2,y1,y2.

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Do you know the basic application in UBUNTU 9.10 the Karmic Koala ?

The basic application in UBUNTU 9.10 the Karmic Koala.

Accessories, Games, Graphics, Internet, Office, Sound & Video, Ubuntu Software Center.

Accessories (Calculator |Perform arithmetic, scientific or financial calculations|, CD/DVD Creator |Create CDs and DVDs|, Character Map |Insert special characters into documents|, Disk Usage Analyzer |Check folder sizes and available disk space|, gedit Text Editor |Edit text files|, Manage Print Jobs |Cancel, pause, resume or reprint jobs|, Passwords and Encryption Keys |Manage your passwords and encryption keys|, Search for Files… |Locate documents and folders on this computer by name or content|, Take Screenshot |Save images of your desktop or individual windows|, Terminal |Use the command line|, Tomboy Notes |Take notes, link ideas, and stay organized|), Games (Logic (Five or More |Remove colored balls from the board by forming lines|, Four-in-a-Row |Make lines of the same color to win|, Klotski |Slide blocks to solve the puzzle|, Mines |Clear hidden mines from a minefield|, Same GNOME |Clear the screen by removing groups of colored balls|, Sudoku |Test your logic skills in this number grid puzzle|, Tetravex |Complete the puzzle by matching numbered tiles|), AisleRiot Solitaire |Play many different solitaire games|, Blackjack, Chess |Play the classic two-player boardgame of chess|, Gnometris |Fit falling blocks together|, Lagno |Dominate the board in a classic version of Reversi|, Mahjongg |Disassemble a pile of tiles by removing matching pairs|, Nibbles |Guide a worm around a maze|, Robots |Avoid the robots and make them crash into each other|, tali), Graphics (F-Spot Photo Manager |Organize, enjoy, and share your photos, GIMP Image Editor |Create images and edit photographs|, OpenOffice.org Drawing |Create and edit drawings, flow charts, and logos|, Xsane Image Scanner |Scan, copy and fax images|), Internet (Empathy IM Client |Send and receive messages|, Evolution Mail |Read and write emails|, Firefox Web Browser |Browse the World Wide Web|, Remote Desktop Viewer |Access remote desktops|, Terminal Server Client |Connect to a remote computer|, Transmission BitTorrent Client |Download and share files over BitTorrent|, Ubuntu One |Access and manage your Ubuntu One account|), Office (Dictionary |Check word definitions and spellings in an online dictionary|, Evolution Mail and Calendar |Manage your email, contacts and schedule|, OpenOffice.org Presentation |Create and edit presentations for slideshows, meeting and Web pages|, OpenOffice.org Spreadsheet |Perform calculation, analyze information and manage lists in spreadsheets|, OpenOffice.org Word Processor |Create and edit text and graphics in letters, reports, documents and Web pages|), Sound & Video (Brasero Disc Burner |Create and copy CDs and DVDs|, Movie Player |Play movies and songs|, Rhythmbox Music Player |Play and organize your music collection|, Sound Recorder |Record sound clips|), Ubuntu Software Center |Let you choose from thousands of free applications available for Ubuntu|.

Places: Home Folder, Desktop, Documents, Music, Pictures, Videos, Downloads, Computer, Network, Connect to Server, Search for Files…, Recent Documents.

System: Preferences (About Me |Set your personal information|, Appearance |Customize the look of the desktop|, Assistive Technologies |Choose which accessibility features to enable when you log in|, Bluetooth |Configure Bluetooth settings|, Default Printer |Select default printer|, Display |Change screen resolution|, IBus Preferences |IBus Preferences|, Keyboard |Set your keyboard preferences|, Keyboard Shortcuts |Assign shorcut keys to commands|, Main Menu |Change which applications are shown on the main menu|, Mouse |Set your mouse preferences|, Network Connections |Manage and change your network connection setting|, Network Proxy |Set your network proxy preferences|, PalmOS Devices |Configure PalmOS devices|, Power Management |Configure power management|, Preferred Applications |Select your default applications|, Remote Desktop |Choose how other users can remotely view your desktop|, Screensaver |Set your screensaver prefences|, Sound |Change sound volume and sound event|, Startup Application |Choose what applications to start when you log in|, Windows |Set your window properties|), Administration(Computer Janitor |Clean up a system so it’s more like a freshly installed one|, Disk Utility |manage Drives and Media|, Hardware Drivers |Configure third-party and proprietary drivers|, Language Support |Configure multiple and native language support on your system|, Log File Viewer |View or monitor system log files|, Login Screen |Configure login screen behavior|, Network Tools |View information about your network|, Printing |Configure printers|, Software Sources |Configure tthe sources for installable software and updates|, Synaptic Package Manager |Install, remove and upgrade software packages|, System Monitor |View current processes and monitor system state|, System Testing |Test and report system information|, Time and Date |Change system time, date, and timezone|, Update Manager |Show and install available updates|, USB Startup Disk Creator |Create a USB startup disk using a CD or disk image|, Users and Groups |Add or remove users and groups|), Help and Support |Get help with Ubuntu|, About GNOME |Learn more about GNOME|, About Ubuntu |Learn more about Ubuntu|.

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Is there any software similar with yahoo messenger that I can use in my UBUNTU?

You can use Yoono as instant messenger in UBUNTU. Beside you can use Yahoo account, you also can use some accounts such as Facebook, Twitter, MySpace, LinkedIn, FriendFeed, Flickr, Aim, Live Messenger and Google Talk.

Yoono also has upload service, such as YFrog (uses Twitter with automatic authentification), TwitPic (requires a Twitter login), Twitgoo (requires a Twitter login), drop.io, MySites, TweetPhoto (requires a Twitter login).

You can download Yoono from: http://yoono.com/

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A-PDF Text Extractor – CONVERT YOUR PDF FILE TO TEXT FILE

By using A-PDF Text Extractor, you can easily convert your pdf file to text (txt) file.

From the option menu, you can manage such as: Page Range: Extract all pages, Page Range: Page from to, Extract: All pages, Extract: Odd pages, Extract: Even pages, Page: Header, Page: Footer, Extract Type: Smart Rearrange, Extract Type: In PDF Order, Extract Type: With Position.

You can download this A-PDF Text Extractor from: http://www.a-pdf.com/text/index.htm

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HOW TO MAKE MIND MAPPING OR SOCIAL BRAINSTORMING ?

You can use XMind to create MIND MAPPING or SOCIAL BRAINSTORMING.

Some tools that you can use from XMind such as: Topic, Subtopic, Topic Before, Parent Topic, Floating Topic, Floating ‘Central’ Topic, Relationship, Boundary, Summary, Attachment, etc.

The STRUCTURE that you can insert such as Fishbone (Left Headed), Fishbone (Right Headed), Spreadsheet, Map, Map (Clockwise), Map (AntiClockwise), Org (Down), Org (Up), Tree (Right), Tree (Left), Logic Chart (Right) and Logic Chart (Left).

The MARKERS that you can add such as Priority (Priority 1, Priority 2, Priority 3, Priority 4, Priority 5, Priority 6), Smiley (Smile, Laugh, Angry, Cry, Surprise, Boring), Task Complete (Starting, WOrking, Half, Near Complete, Completed, Pause), Flags (Green, Red, Orange, Purple, Blue, Cyan), Stars (Green Star, Red Star, Yellow Star, Purple Star, Blue Star, Gray Star), Half Stars (Green Half Star, Red Half Star, Yellow Half Star, Purple Half Star, Blue Half Star, Gray Half Star), Others (Calendar, EMail, Phone, Phone, Fax, People, People, Clock, Coffee Cup, Question, Exclamation Mark, Light Bulb, Business Card, Social, Chat, Note, Lock, Unlock, Yes, No).

You also can choose the STYLE, such as TOPIC (Grassland, Skyline, Deep Ocean, Caution!, Surprise, Silver Coin, Bumble Bee, Void, Decision, Process, Terminator, Comments), BOUNDARY (Clouds, Lake, Explosion, Stone, Neon Light 1, Neon Light 2), RELATIONSHIP (Sagittarius, Tracing, Subway, Bridge, Watch This!, Flow) and SHEET (Water, Wheat, Space, Blacboard).

You also can choose the THEMES such as: Default, XMIND Classic, XMIND Simple, XMIND Business, XMIN Academese and XMIND Comic

You also can export to: FreeMind, HTML, Image, Marker Package, Mindjet MindManager Map [Pro], PDF (Map) [Pro], PDF Document [Pro], PowerPoint 2007 Presentation [Pro], PowerPoint 97-2003 Presentation [Pro], RTF File (Word Compatible) [Pro], Text, Word 2007 Document [Pro], Word 97-2003 Document [Pro], XMind 2008 Workbook.

You also can import from: FreeMind 0.8/0.9, Marker Package, MindManager 5/6/7/8, XMind 2008 Workbook.

You can download XMIND from http://sourceforge.net/projects/xmind3/

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