Matlab Quick Reference (Page 6 of 12) in pdf

Function Functions - Nonlinear Numerical

Variance

Polynomial with specified roots

var

poly

Methods

Polynomial derivative

polyder

Polynomial eigenvalue problem

Solve two-point boundry value problems (BVPs)

polyeig

Finite Differences

bvp4c

for ordinary differential equations (ODEs)

Polynomial curve fitting

polyfit

Discrete Laplacian

del2

Extract parameters from BVP options structure

bvpget

Analytic polynomial integration

polyint

Differences and approximate derivatives

Form the initial guess for bvp4c

diff

bvpinit

polyval

Polynomial evaluation

Numerical gradient

Create/alter BVP options structure

gradient

bvpset

Matrix polynomial evaluat ion

polyvalm

Evaluate the solution computed by bvp4c

bvpval

Convert between partial fraction expansion and polynomial

residue

coefficients

Numerical evaluation of double integrals

dblquad

Correlation

Polynomial roots

Minimize a function of one variable

roots

fminbnd

corrcoef

Correlation coefficients

Minimize a function of several variables

fminsearch

Covariance matrix

cov

Find zero of a function of one variable

fzero

Data Interpolation

ode45, ode23,

Convex hull

convhull

ode113, ode15s,

Solve initial value problems for ODEs

Filtering and Convolution

ode23s, ode23t,

Multidimensional convex hull

convhulln

ode23tb

Convolution and polynomial multiplication

conv

Delaunay triangulation

delaunay

Extract parameters from ODE options structure

odeget

Two-dimensional convolution

conv2

Three-dimensionalDelaunay tessellation

delaunay3

Create/alter ODE options structure

odeset

Deconvolution and polynomial division

deconv

delaunayn

Multidimensional Delaunay tessellation

Get optimization options structure parameter

Filter data with an infinite impulse response (IIR) or finite

optimget

Search for nearest point

filter

dsearch

values

impulse response (FIR) filter

Multidimensional closest point search

dsearchn

Create or edit optimization options parameter

Two-dimensional digital filtering

filter2

optimset

structure

Data gridding

griddata

Solve initial-boundary value problems

pdepe

Data gridding and hypersurface fitting for three-dimensional

griddata3

data

Evaluate the solution computed by pdepe

Fourier Transforms

pdeval

Data gridding and hypersurface fitting (dimension >= 2)

Numerical evaluation of integrals, adaptive

griddatan

Absolute value and complex magnitude

abs

quad

Simpson quadrature

One-dimensional data interpolation (table lookup)

interp1

Phase angle

angle

Numerical evaluation of integrals, adaptive Lobatto

Two-dimensional data interpolation (table lookup)

interp2

quadl

Sort complex numbers into complex conjugate pairs

cplxpair

quadrature

Three-dimensional data interpolation (table lookup)

interp3

One-dimensional fast Fourier transform

Vectorize expression

fft

vectorize

One-dimensional interpolation using the FFT method

interpft

Two-dimensional fast Fourier transform

fft2

Multidimensional data interpolation (table lookup)

interpn

Sparse Matrix Functions

Shift DC component of fast Fourier transform to center of

fftshift

spectrum

Generate X and Y matrices for three-dimensional plots

meshgrid

Elementary Sparse Matrices

Generate arrays for multidimensional functions and

Inverse one-dimensional fast Fourier transform

ifft

ndgrid

interpolation

Extract and create sparse band and diagonal matrices

spdiags

Inverse two-dimensional fast Fourier transform

ifft2

Piecewise Cubic Hermite Interpolating Polynomial (PCHIP)

pchip

Sparse identity matrix

speye

Inverse multidimensional fast Fourier transform

ifftn

Piecewise polynomial evaluation

ppval

Sparse uniformly distributed random matrix

sprand

ifftshift

Inverse FFT shift

Cubic spline data interpolation

spline

Sparse normally distributed random matrix

sprandn

Next power of two

nextpow2

Search for enclosing Delaunay triangle

tsearch

sprandsym

Sparse symmetric random matrix

Correct phase angles

unwrap

Multidimensional closest simplex search

tsearchn

Voronoi diagram

voronoi

Polynomial and Interpolation Functions

Full to Sparse Conversion

Multidimensional Voronoi diagrams

voronoin

Polynomials

Find indices and values of nonzero elements

find

Convolution and polynomial multiplication

conv

Convert sparse matrix to full matrix

full

Deconvolution and polynomial division

Create sparse matrix

deconv

sparse

Matlab Quick Reference Page 6

Related Articles

Related forms

Related Categories