Gauss Jordan Elimination

RADIATION HEAT TRANSFER- SHAPE FACTOR CALCULATION (MECHANICAL ENGINEERING) The file, sfactor.m ; (example) xxx = sfactor(a).calculates shape factor between two flat surfaces with arbitrary orientation and location. (sfactor12.m and sfactor16.m are similar to sfactor.m but with 12 and 16...

Both functions caculate the Lomb normalized periodogram (aka Lomb-Scargle, Gauss-Vanicek or Least-Squares spectrum) of a vector x with coordinates in t, which is essentially a generalization of the DFT for unevenly sampled data.The codes are transcriptions from Fortran of the subroutines found in...

1 Introduction This toolbox implements all the routine PLS-related/based algorithms which kind of serves as the basics in chemometrics, including PLS calibration and prediction, leave one out cross validation (LOOCV), K-fold cross validation, Monte Carlo cross validation(MCCV), double cross...


Platforms: Matlab

SHPATH - shortest path with obstacle avoidance (ver 1.3) Given a "terrain" matrix consisting of zeros (for open space) and ones (for obstacles), this function computes the shortest path between two specified points while avoiding obstacles.A two-stage solution is employed. In stage one, the...


Platforms: Matlab

The conjugate gradient method aims to solve a system of linear equations, Ax=b, where A is symmetric, without calculation of the inverse of A. It only requires a very small amount of membory, hence is particularly suitable for large scale systems.It is faster than other approach such as Gaussian...


Platforms: Matlab

We focus on the lectures 20, 21, and 22 of the book "Numerical Linear Algebra" by Trefethen and Baum.


Platforms: Matlab

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...


Platforms: Matlab

One function produces the Laguerre polynomial and the other integrates


Platforms: Matlab

This is an implementantion of the Gauss algorithm for block tridiagonal systems. The blocks must all be the same size. This approach requires for loops so is of value when the matrix is large. Ideal for solving 1D BVPs using finite element or spectral methods.


Platforms: Matlab

Simulink model for 1phase fully controlled scr harmonic elimination with free wheeling is modelled. its easy to understand and efficient and u can learn the basics of rectification. It is intended to students who would like to simulate rectifiers. Here I used thyristors instead of diodes to get...


Platforms: Matlab

An efficient algorithm for identification of strong polarity-inversion line (SPIL) on Solar Dynamic Observatory (SDO) Helioseismic and Magnetic Imager (HMI) magnetograms.Detailed description will appear in the paper: Volobuev, D.M. StrongPolarity-Inversion Line Preceding X-class Flare, Solar...


Platforms: Matlab

USAGE: [Y CovY] = Correlation_elimination( X )INPUT:X denote multivariate original observations (correlated data)OUTPUT:Y denote the multivariate uncorrelated dataCovY is the covariance of Y_________________________________________Example:Transform the multivariate Poisson-Weibull (X) data to new...


Platforms: Matlab

SHPATH - shortest path with obstacle avoidance (ver 1.3) Given a "terrain" matrix consisting of zeros (for open space) and ones (for obstacles), this function computes the shortest path between two specified points while avoiding obstacles.A two-stage solution is employed. In stage one, the...


Platforms: Matlab

DIRECT METHODS FOR SOLUTION OF LINEAR SYSTEMSGaussian Elimination AlgorithmGauss-Jordan AlgorithmFactoring algorithmITERATIVE METHODS FOR SOLVING SYSTEMS OF EQUATIONSJacobi algorithmGauss-Seidel algorithm


Platforms: Matlab

gaussleg(f,a,b,ngp)I have found that this is on average +20 times faster than 'Gauss-Legendre' file(4560), and easier to read because it is shorter.


Platforms: Matlab

This zip has 3 funtions:-polegende generates legendre polinomyal.-flege performs an integration variable change to change any interval [a,b] to [-1,1] so the integral can be properly evaluated.-gausslegende numericaly evaluates the integral of function [f]


Platforms: Matlab

Calculate pi using the Gaussian-Legendre algorithm. The function PIGL.M produces an ASCII file containing the number of decimals requested. The maximum number depends on free disk space and the RAM available.


Platforms: Matlab

i download one matlab file from here to calculate the modes in laser, Laguerre-Gauss modes but it was not working properly. So i wrote my own function. It is pretty simple function, i hope it is efficient as well. i used it and post the result i got.


Platforms: Matlab

This is a simple program I made for homework, the roots or zeros of the legendre's polinomials are used to integrate using the gauss quadrature, it works but it's still a bit uneficient, while I find a better way to use the roots.


Platforms: Matlab

generates zeros of a Hermite polynomial of degree n to tolerance "tol" and their associated weights.Uses recursion relation to generate the Hermite function and finds zeros via change of sign and linear interpolation. If a tolerance is specified, the routine will call itself recursively with a...


Platforms: Matlab