Lambda Sigma Gamma Sorority

Sigma visual builder is web based tool for AJAX RIA application UI rapid design and involved scripts programming. Written in pure javascripts(Sigma Linb), Sigma visual builder products great compatibilities with web browsers. With this powerful builder, professional and enterprise developers can...

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 :...

Oree - Optimum Real-time Estimation of Events of Interaction: real-time reconstruction of photon interaction events in Gamma Cameras. Optionally making use of a CUDA enable GPU, Oree achieves reconstruction of over 1M events/sec.


Platforms: Windows, Mac, Linux

after downloadingto run program, enter damping(r,R,h,l,m)m=mass of bobh=height to which bob is thrownl=damping factor(i.e gamma=(l/2m))r=length of pendulmr=radius of bobenter ur values...for programm..enjoy...


Platforms: Matlab

A useful tool built to help the user gain an intuitive feel for option pricing and the greeks.Allows the user to create a portfolio of options (and thus straddles, strangles, butterflies and anything else you fancy can be easily created using the GUI).Once this is done, the user can plot the...


Platforms: Matlab

The Lorenz attractor, named for Edward N. Lorenz, is an example of a non-linear dynamic system corresponding to the long-term behavior of the Lorenz oscillator.The Lorenz oscillator is a 3-dimensional dynamical system that exhibits chaotic flow, noted for its lemniscate shape. The map shows how...


Platforms: Matlab

Program FFTSIGMA plots Fourier series representations with sigma approximation. The figures show effects of the number of series terms and use of Lanczos sigma factors to smooth Gibbs oscillations. The Fourier series of a periodic function with period px has the approximate form: f(x) = sum(...


Platforms: Matlab

Lyapunov exponent calcullation for ODE-system. The alogrithm employed in this m-file for determining Lyapunov exponents was proposed in A. Wolf, J. B. Swift, H. L. Swinney, and J. A. Vastano, "Determining Lyapunov Exponents from a Time Series," Physica D, Vol. 16, pp. 285-317, 1985.For...


Platforms: Matlab

[VINDX FRACDIM V_SIGMA COVERSIZE] = varIndx(LOW,HIGH) LOW is a column vector of the lowest price in the bar (second, minute, etc). HIGH is a column vector of the highest price in the bar. VINDX is the variation index of the data. FRACDIM is the fractal dimension of the data. V_SIGMA is the...


Platforms: Matlab

This code calculates the Exponentially Weighted Moving Average Standard Deviation Exponentially weighted moving average (EWMA) standard deviation applies different weights to different returns. More recent returns have greater weight on the variance. The exponentially weighted moving average...


Platforms: Matlab

Sigma Forex is leading European professional online trading Brokers registered in the Uk and most of the EU countries. It was founded by professional private investors including (banks, traders, brokers, and software developers), which enabled Sigma to identify the essential needs of the Forex...


Platforms: Windows

This zip contains functions that allow- to draw random samples from any arbitrary bivariate Gamma distribution, with Gamma distributed marginals. The user should specify the shape and scale parameters of the marginals, as well as the linear correlation coefficient.The algorithm is based on...


Platforms: Matlab

QuickGamma is a small utility program to calibrate a monitor on the fly without having to buy expensive hardware tools. The relationship between the input signal and the luminance of a monitor is not linear but exponential with gamma being the exponent. A gamma value of 2.2 has become the de...


Platforms: Windows

An interpreter of lambda calculus.It shows reduction process of lambda terms.Several evaluation strategies are supported.Output format can be selected from LaTex, plain text.


Platforms: Windows, Mac, Solaris, Linux

Set of functions providing the attenuation and energy absorption coefficients of x-ray and gamma-ray photons in various materials, based on NIST report 5632, by J. Hubbell and S.M. Seltzer.X = PhotonAttenuation(Material, Energy, Options, Thickness)Function providing the attenuation and energy...


Platforms: Matlab

The program is an ordinary m-filethe matrix g(*,*) can be used to punch in the metric values in terms of symbolic variables x1,x2,x3,x4(co-ordinate axes)The program first computes the Affine connection(Christoffel symbols) stored in Gamma matricesThese are then used to construct and solvegeodesic...


Platforms: Matlab

This toolbox allow the simulation of sigma-delta modulators. considering the most important building block non-idealities. Moreover, it provides functions for evaluating the sigma-delta modulator performance.


Platforms: Matlab

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

Auto Gaussian & Gabor Surface fit---Functions to fit a 1D Gaussian to a curve and a 2D Gaussian or Gabor to a surface. The routines are automatic in the sense that they do not require the specification of starting guesses for the model parameters. This is done by evaluating the quality of fit for...


Platforms: Matlab