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updated 21 days ago

Lower Upper Complex NUmber by Adilson Batista

Solve linear system with complex number (mathematics, complex, linear algebra)

dec_LUx_PB_complex.m

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updated 1 month ago

Complex fsolve by Leonidas Georgopoulos

Computes numerically complex solutions of a system of equations (complex, imaginary, optimisation)

[cfsol fsol fval exitflag output jacob ]=cfsolve(funhandl...

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updated 4 months ago

MappedTensor class - memory-mapped files by Dylan Muir

A better, transparent memmapfile, with complex number support. (matrix, large tensor, mapped file)

MappedTensor

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updated 11 months ago

Non-Redundant Shift-Invariant Complex Wavelet Transform by Reshad Hosseini

2 m-file functions for applying complex wavelet and inverse complex wavelet transforms. (complex, wavelet, shiftinvariance)

[d,offset]=extensiontype(kin)

[yout,Sizes]=CWT_downcoef(x,levels,dim)

example

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updated 2 years ago

Mandelbrot set, animated zoom by Maxim Vedenyov

output: avi or gif (mandelbrot set, zoom, fractal)

hf=figure1

mandelbrot.m

mandelbrot2.m

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updated 2 years ago

Four-Parameter Sinefit by Marko Neitola

Least squares sinusoid fit. Optimization toolbox not needed. Data can be non-uniformly sampled. (leastsquares, sinusoid, fit)

sinefit(varargin)

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updated 3 years ago

Complex Function Grapher by Jon Moller

A tool to graph complex functions on the Argand plane (x + iy). (complex, complex function, argand)

compfuncgraph2.m

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updated 3 years ago

NROOTS: complex polynomial root finder by Vinesh Rajpaul

NROOTS finds all the roots of real/complex polynomials. Accuracy is better than with ROOTS. (polynomial, roots, polynomial roots)

nroots(p)

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updated almost 5 years ago

Permittivity of Metals at Optical Wavelengths (Brendel-Bormann) by Collin Meierbachtol

Relative complex permittivity of various metals using the Brendel-Bormann method. (permittivity, complex, silver)

cef(z,N);

cef(z,N);

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updated almost 5 years ago

domain coloring by Ankur Pawar

Visualization of complex function. (domain coloring, complex function, mathematics)

img=coolviz1(func)

img=coolviz2(func)

img=coolviz3(func)

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updated almost 5 years ago

Fast 2D histogram calculation by Amanda

Fast calculation of 2D histogram. Optionally displays surf plot of histogram. (2d, histogram, complex)

hist2d(D, varargin)

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updated almost 5 years ago

Permittivity of Gold at Optical Wavelength (Brendel-Bormann) by Collin Meierbachtol

Relative complex permittivity of gold over optical wavelengths using the Brendel-Bormann method. (permittivity, complex, gold)

cef(z,N);

cef(z,N);

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updated 5 years ago

Complex Optimization of a Recurrent Neural Network by Travis Wiens

Shows how to use the complex method to optimize a black-box neural network model of a load-sensing h (fuzzy logic, neural networks, complex)

P=W_to_param(W,N_in);

W=params_to_W(P,N_in);

[W]=initializegnn_static(m,n,N_h,overlapfactor)

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updated 5 years ago

newtzero by Matt Fig

Finds the root(s) of a function of one variable, including complex roots, using Newton's method. (root finder, newtons method, zeros)

newtzero(f,xr,mx,tol)

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updated 5 years ago

Polylogarithm / de Jonquière's function by Willem Ottevanger

Computes the polylogarithm (Li_n) of a complex number z base n (polylogarithm, li_n, de jonquières functio...)

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updated almost 6 years ago

resid2rhit by Bradley

Computes partial fraction expansion by a batch method. (residuem, complex, roots)

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updated 6 years ago

Find Numbers in a String by Edward Zechmann

Finds flaoting point numbers in a string including: complex, real, integers, and currency (dollars). (strings, numbers, string)

[nums, matches]=find_nums(str, flag1, decimal_point, comp...

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updated 6 years ago

CORDIC for phase and magnitude computation by Krishna Sankar M

Uses the cordic approach to find the phase and magnitude of a complex number (cordic, phrase, magnitude)

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updated 6 years ago

linearizor by Yi Cao

A complement tool and tutorial for nonlinear dynamic system linearization (linearization, nonlinear dynamic sys..., state space equation)

[A,B,C,D,dx,y]=linearizor(f,x,u,h)

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updated almost 7 years ago

erfi function by Per Sundqvist

Imaginary error function (could be complex) using matlab's incomplete gamma function gammainc (imaginary error funct..., complex, gaussian)

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updated almost 7 years ago

Complex step Hessian by Yi Cao

Calculate Hessian using complex step differentiation (hessian, complex step differen..., complex)

[A,g,z]=hessiancsd(fun,x)

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updated almost 7 years ago

Fresnel integral by Bora Ung

Computes the Fresnel integral with complex argument "z" (fresnel, integral, argument)

FresnelI(z, tol)

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updated 7 years ago

Gerschgorin's disk Thm (a test) by Summit Suen

plot eigenvalue on complex plane show that all these points located in such circles. (linear algebra, gerschgorin eigenvalu..., test)

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updated 7 years ago

Taylor series in the complex plane by Alex Barnett

2D plot of complex functions using color wheel, and animates their Taylor series convergence (specialized, plotting, education)

show_zser(a, opt);

taylor.m

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updated 7 years ago

Complex scaled complementary error function by Thomas Winiecki

Function computes the complex scaled complementary error function. (faddeeva function, fadeeva function, complex)

W(Z)

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updated 7 years ago

exp2text by Vasilis Kapetanidis

Converts exponential format to TeX format for annotating plots (annotation, customization, tex)

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updated almost 8 years ago

Figure out residue of a function of complex variable by Pu Ke

Try to figure out all residues of corresponding singular point (symbolic math, residue, function)

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updated 8 years ago

Confluent hypergeometric function (Kummer function) by Stepan Yanchenko

Computes confluent hypergeometric function 1F1 for complex parameters a, b and complex variable z. (confluent, hypergeometric, function)

[chg]=KummerComplex(a,b,z)

[gr,gi]=cgama(x,y,kf)

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updated 8 years ago

Complex Dilogarithm by Didier Clamond

Dilogarithm of any complex numbers (dilog, dilogarithm, complex)

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updated almost 10 years ago

Generalized Hypergeometric Function by Ben Barrowes

Calculates the Generalized Hypergeometric Function at the desired accuracy. (generalized hypergeom..., complex, magnitudes)

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updated 10 years ago

harmonic.m by David Terr

Harmonic(n) is an estimate of the nth harmonic number. (harmonic number, estimate, nth)

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updated 10 years ago

Polygamma Function of Arbitrary Order Valid Complex Plane by Paul Godfrey

Polygamma function arbitrary order valid in the entire complex plane. (polygamma, psi, complex)

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updated 10 years ago

roundcfrac.m by David Terr

Computes the "round continued fraction" of a given complex number. (continued fraction, round, complex)

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updated 11 years ago

Gamma by Paul Godfrey

Compute a very accurate Gamma function over the entire complex plane. (complex, gamma, function)

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updated 11 years ago

Psi by Paul Godfrey

Compute the psi or digamma function. (psi, digamma, plane)

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updated 11 years ago

erfz by Paul Godfrey

Compute the error function for complex inputs. (erf, error, function)

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updated 11 years ago

csf2rsf by Paul Godfrey

Converts the complex schur form into the real schur form. (linear algebra, schur, form)

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updated 11 years ago

fft_upsample by 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 almost 12 years ago

uifit by Jean-Michel Rousseau

A GUI which uses fmins matlab core function "fmins" to fit data with any function. (optimization, fmins, fminsearch)

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updated 12 years ago

C-Adaptive Equalizer by Muhammad Mumtaz Khokhar

Complex adaptive equalizer. (equalizer, complex, adaptive)

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updated almost 13 years ago

nrange by Valentin Matache

The routine nrange graphs the numerical range of any square matrix with complex entries. (linear algebra, numerical range, nrange)

nrange(A, P, C, F);

Demonrange.m

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updated 17 years ago

resid2wp.m by Bradley Burchett

This file fixes (to a certain degree) the numerical problems with repeated roots in 'residue.m'. (residuem, complex, roots)

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