# Mathematics and Matlab scripts

## Mathematics shareware and freeware script

Records: 1 - 60 from ### routh

routh routh returns the symbolic Routh array given a polynomial. ### planenormvec

planenormvec planenormvec - Calculate the normal vector of a plane in 3D that contains thr ### ORTHPOLYFIT ORTHPOLYVAL

ORTHPOLYFIT ORTHPOLYVAL ORTHPOLYFIT ORTHPOLYVAL - Direct transform of multivariate series ### bindex

bindex bindex solves the binning problem. ### perms

perms perms - even, odd, cyclical, unique permutions of a set of vectors ### row echon reduce

row echon reduce row echon reduce - It has similar function with rref,but it has some char ### Toeplitzmult

Toeplitzmult Toeplitzmult implements fast matrix-vector multiplication for Toeplitz matric ### Random number generation

Random number generation Random number generation generates n random numbers between 0 and ### Fresnel Sine and Cosine Integrals

Fresnel Sine and Cosine Integrals Fresnel Sine and Cosine Integrals calculates Fresnel Sin ### LiScNLE 1.0

LiScNLE LiScNLE - Matlab application for nonlinear partial differential evolution equation ### Fast Chebyshev Differentiation

Fast Chebyshev Differentiation Fast Chebyshev Differentiation computes the numerical deriv ### Field of values

Field of values Field of values plots the field of values of a square complex matrix. ### mandelbrot set

mandelbrot set mandelbrot set plots the mandelbrot set ### Improved Algebra files

Improved Algebra files Improved Algebra files - Comput roots and polynomial functions with ### Fast retrieve line coordinates

Fast retrieve line coordinates Fast retrieve line coordinates - Fast retrieve the (x,y) co Inverse (integrated) gradient Inverse (integrated) gradient - Vectorized & fully sparse 1- ### A C-mex Function to find N largest number

A C-mex Function to find N largest number A C-mex Function to find N largest number in a M ### Efficient Approximative Multiplication of Square

Efficient Approximative Multiplication of Square Efficient Approximative Multiplication of ### geom2d

geom2d geom2d - functions to create, transform, intersect and draw 2D geometrical shapes ( ### Curves as Fractals

Curves as Fractals Curves as Fractals - Generating curves in a fractal way ### RoundQCF

RoundQCF RoundQCF - RoundQCF(d,u,v) returns the ### Summed Newton-Cotes Rules

Summed Newton-Cotes Rules Summed Newton-Cotes Rules - 2-11 Point Summed Newton-Cotes Rules ### equationGUI

equationGUI equationGUI - A simple GUI for ODE (van der pol-prey predator - logistic model ### Symbolic Polynomial Manipulation

Symbolic Polynomial Manipulation Symbolic Polynomial Manipulation - Symbolic polynomial ma ### gridtrimesh

gridtrimesh gridtrimesh fits a square grid surface of the form z = f(x,y) to a triangular ### Elliptic Integrals of three types

Elliptic Integrals of three types Elliptic Integrals of three types and Jacobian Elliptic ### LegendreShiftPoly

LegendreShiftPoly LegendreShiftPoly returns the coefficients of the shifted Legendre polyn ### A Faster Convolutional 1D Operator

A Faster Convolutional 1D Operator A Faster Convolutional 1D Operator - A faster conv for ### polygeom

polygeom polygeom computes area, centroid location, area moments of inertia and perimeter Chua Circuit Paradigm Chua Circuit Paradigm - A MATLAB function that returns the I3,V2,V1 ### LibLip

LibLip LibLip uses Lipschitz properties of a function to interpolate or approximate it fro ### xLOGy

xLOGy xLOGy - Generalized logarithm ### fulldiff

fulldiff fulldiff symbolically computes full derivative wrt time using chain rule and time ### dots

dots dots - Multiple matrix-matrix products, or general operations on cartesian tensors ### Symmetric matrix factoring

Symmetric matrix factoring Symmetric matrix factoring factors an nxn matrix into a product ### MESHND

MESHND MESHND - creation and nested dissection of regular 2D and 3D meshes ### Polyfit at Chebyshev Points

Polyfit at Chebyshev Points Polyfit at Chebyshev Points - Program demo using polyfit for p ### Fast Chebyshev Transform

Fast Chebyshev Transform Fast Chebyshev Transform transforms between nodal and spectral va ### Sparse Matrix Multiplication

Sparse Matrix Multiplication Sparse Matrix Multiplication allows you to specify the maximu ### ldlt

ldlt ldlt compute square root free Cholesky factorizations of the form A=L*D*L'  ### vebyk

vebyk vebyk performs ordinary kriging and can be easily adapted to other kriging methods. ### trig functions in degrees

trig functions in degrees trig functions in degrees - The six standard trig functions modi ### big x^y modulo function

big x^y modulo function big x^y modulo function provides the solution when the normal mod ### RATPOW

RATPOW RATPOW raises a real number to a rational power. ### boxcount

boxcount boxcount - Fractal dimension using the 'box-counting' method for 1D, 2D and 3D se ### Absolute Stability of an Integration Method

Absolute Stability of an Integration Method Absolute Stability of an Integration Method sh ### Frenet

Frenet Frenet - Frenet-Serret Space Curve Invarients ### FILLNANS

FILLNANS FILLNANS replaces all NaNs in array using inverse-distance weighting between non- ### loopchoose

loopchoose loopchoose - A looped version of nchoosek ### Inverse 1D Interpolation

Inverse 1D Interpolation Inverse 1D Interpolation - 1D interpolation when there are multip ### Data scaling

Data scaling Data scaling - Program to scale the values of a matrix from a user specified ### CUMSIMPSUM

CUMSIMPSUM CUMSIMPSUM - Cumulative numerical integration via the Simpson's rule. ### SpecialFunctions

SpecialFunctions SpecialFunctions - Special functions archive. ### Luhn Algorithm Functions

Luhn Algorithm Functions Luhn Algorithm Functions - Luhn algoritm check and computation of ### Figure out residue of a function of complex var

Figure out residue of a function of complex var Figure out residue of a function of comple ### Newton's Pendulum

Newton's Pendulum Newton's Pendulum - Simulation and animation of Newton's Pendulum ### pcgnull

pcgnull pcgnull - Preconditioned Conjugate Gradients Method  