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updated 1 month ago

inpolygons by Kelly Kearney

Kelly Kearney

Finds points inside multiple polygons, holes possible. (approximation, interpolation, polygon)

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updated 2 months ago

biparabolic interpolation by Orlando Rodríguez

Orlando Rodríguez

Biparabolic surface interpolation and calculation of derivatives. (approximation, interpolation, derivatives)


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updated 4 years ago

Bisection by Wolfgang Putschögl

Wolfgang Putschögl

Computes the root of a function f by bisectioning. (approximation, solve, mathematics)


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updated 4 years ago

Line Simplification by Wolfgang Schwanghart

Wolfgang Schwanghart

Recursive Douglas-Peucker Polyline Simplification (Iterative Endpoint Fit) (approximation, interpolation, polyline)



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updated 6 years ago

Real-Valued Spherical Harmonics by Bing Jian

Bing Jian

some useful spherical harmonics routines (approximation, interpolation, spherical harmonics)

SHRotate(r, degree)



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updated 7 years ago

Newton-Raphson by Keerthi venkateswara Rao

Keerthi venkateswara Rao

Newton-Raphson method for all real roots of the polynomial. (approximation, interpolation, iterative)




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updated 8 years ago

Lagrange Interpolator Polynomial by Dan Ellis

Dan Ellis

Find the polynomial (defined by its coefficients) passing through a set of points. (approximation, interpolation, lagrange interpolator...)

Lagrange Interpolation Polynomial


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updated 9 years ago

Interpolation by Sokthai Chan

Sokthai Chan

Tschebyscheff interpolation. (approximation, interpolation, sokthai chan)

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updated almost 10 years ago

Fast retrieve line coordinates by Alejandro Sanchez-Crespo

Fast retrieve the (x,y) coordinates of a line, given the starting and ending points. (approximation, interpolation, 2d)

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updated almost 10 years ago

ortho_poly.m (Chebyshev polynomials) by Balajee Ananthasayanam

Balajee Ananthasayanam

Evaluates chebyshev polynomials with vector arguments for vector arguments x. (approximation, interpolation, chebyshev)

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updated 10 years ago

polyfic by Vassili Pastushenko

Vassili Pastushenko

Vectorized fit of vectors to columns of a matrix. (approximation, interpolation, polynomial)

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updated 10 years ago

LegendreShiftPoly by Peter Roche

Peter Roche

This program returns the coefficients of the shifted Legendre polynomial P_n, given n. (approximation, interpolation, shifted)

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updated 10 years ago

Entrop by Michael Boss

Michael Boss

ENTROP implements a special version of the algorithm for entropy maximization. (approximation, interpolation, entropy)

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updated 10 years ago

Circle fit by Izhak Bucher

Izhak Bucher

Fit a circle to a set of measured x,y points. (approximation, interpolation, circle fit)



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updated almost 12 years ago

fft_upsample by Ohad Gal

Ohad Gal

Upsamples a complex series to form time domain interpolation for a fixed spaced grid. (approximation, interpolation, complex)

fft_upsample( in_m,upsample_factor )

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updated 13 years ago

smoothn by Anil Gannepalli

Anil Gannepalli

Smooths N-D input data using 'box' or 'gaussian' filter using a specified convolution kernel. (approximation, interpolation, smooth)

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updated 13 years ago

Lagrange polynomial interpolation by Carlo Castoldi

Carlo Castoldi

Lagrange polynomial interpolation (approximation, interpolation, lagrange)


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updated almost 16 years ago

polyfit2 by David Moline

David Moline

Performs polynomial fits that pass through a specified point (x0,y0). (approximation, interpolation, tools)

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