Gamma Function

GAMMA_INCOMPLETE evaluates the upper incomplete gamma function(incomplete gamma function of the second kind) $Gamma(a,x)$at non-negative values of the argument. This function extends theMATLAB function gammainc to negative values of the parameter a. SYNOPSIS: fun=gamma_incomplete(x,a) INPUT x :...

There are two issues with the Pearson type IV distribution: (I) the complex gamma function entering the normalization constant in the probability density function (pdf) and (II) the complex Gauss hypergeometric function entering the cumulative distribution function (cdf). For the complex gamma...

A handy, fast, reliable, precise tool if you need to perform complex mathematical calculations Scientific Calculator Precision 81 is programmed in C#. All calculations are done in proprietary data type. The calculator handles mathematical formulas of any length and complexity. Calculation...


Platforms: Windows

A handy, fast, reliable, precise tool if you need to perform complex mathematical calculations. Scientific Calculator Precision 72 is programmed in C#. All calculations are done in proprietary data type. The calculator handles mathematical formulas of any length and complexity. Calculation...


Platforms: Windows

A handy, fast, reliable, precise tool if you need to perform complex mathematical calculations. Scientific Calculator Precision 90 is programmed in C#. All calculations are done in proprietary data type. The calculator handles mathematical formulas of any length and complexity. Calculation...


Platforms: Windows

A handy, fast, reliable, precise tool if you need to perform calculations with complex functions. Complex Number Calculator Precision 45 is programmed in C#. All calculations are done in proprietary data type. The calculator handles mathematical formulas of any length and complexity....


Platforms: Windows

In mathematics, the multiplication theorem is a certain type of identity obeyed by many special functions related to the gamma function. For the explicit case of the gamma function, the identity is a product of values; thus the name. The various relations all stem from the same underlying...


Platforms: Matlab

Matlab doesn't provide the values of n! when n>170, but this code can evaluate the logarithm of of n! with absolute accuracy of 1e-12 or better, and relative accuracy of 1e-15 or better. The following codes employ Stirling's integration formula of Gamma function.


Platforms: Matlab

A handy, fast, reliable, precise tool if you need to perform calculations with comlex functions. Complex Number Calculator Precision 36 is programmed in C#. All calculations are done in proprietary data type. The calculator handles mathematical formulas of any length and complexity. Calculation...


Platforms: Windows

Generate a Gamma random variable "Statistical Distributions", Evans, Hastings, Peacock, 2nd Edition, Wiley, 1993, p.75-81INPUTS: (N,M) = size of array of random variables to generate b = scale parameter > 0 c = shape parameter > 0 probability density function (pdf) p(x) = (x/b)^(c-1) * exp(-x/b)...


Platforms: Matlab

LAPLACEOFPARETO evaluates the Laplace-Stietljes transform (LST) of the Paretodistribution with parameters a and b. Specifically, this function evaluatesthe LST E[exp(-sX)] of a random variable $X$ which has Pareto distribution$F(x)=1-frac{b^a}{(b+x)^a}$, where s>0, a>0, b>0. The formula used...


Platforms: Matlab

This function computes log10 of the factorial. Unlike FACTORIAL, it is not limited to arguments less than 171.Two methods are implemented, one based on the gamma function (thank you, John), as well as a direct sum. The user can choose between the two methods. The gamma method is superior and is...


Platforms: Matlab

Scientific Advantage? is a Unit Aware? calculator that lets you work with feet-inch-fraction dimensional values and includes advanced math functions, automatic solvers, and much more. Unit Aware? means that you can effortlessly compute with units (not just convert). It also has great options like...


Platforms: Windows, Windows CE, Pocket PC

exrtools project is a set of simple command-line utilities for manipulating with high dynamic range images in OpenEXR format. OpenEXR is a high dynamic-range (HDR) image file format developed by Industrial Light & Magic for use in computer imaging applications. exrtools was developed to help...


Platforms: *nix

Ultimate Advantage? is a Unit Aware? calculator that lets you work with feet-inch-fraction dimensional values and includes advanced math functions, automatic solvers, and much more. Unit Aware? means that you can effortlessly compute with units (not just convert). It also has great options like...


Platforms: Windows

This workspace employs interactive graphics and Muller's method to compute function roots in a rectangular region of the complex plane. Function interact employs surface and contour plots of -log(abs(function(z))) to locate function roots which are read interactively with the graphics cursor and...


Platforms: Matlab

mpmath is a replacement for Python's float/complex types and math/cmath modules with unlimited precision and exponent sizes. The mpmath software is written entirely in Python without any external dependencies and hence runs almost anywhere, without the need for compilation. To install, unpack...


Platforms: Mac

Simple function to generate N random variates from a gamma distribution. Uses acceptance-rejection method, e.g. http://en.wikipedia.org/wiki/Gamma_distribution


Platforms: Matlab

Toolbox for MMSE estimators of DFT coefficients under the generalized Gamma densityThe toolbox can also be downloaded from: http://ict.ewi.tudelft.nl/~richard/The matlab files enclosed in this toolbox can be used to tabulate gain functionsfor clean speech complex-DFT, magnitude-DFT and magnitude...


Platforms: Matlab

Function Grapher is graph maker to create 2D, 2.5D, 3D and 4D function graphs, animations and table graphs. 2D functions can be in the form of explicit, parametric, piecewise, implicit and inequality. 3D functions can be in the form of explicit, parametric and implicit.


Platforms: Windows, Windows 7, Windows Server