Mathematical analysis

Launches an interactive gui for exploring runge kutta time integration schemes in matlab

The following Matlab project contains the source code and Matlab examples used for launches an interactive gui for exploring runge kutta time integration schemes . GUI for exploring different Runge-Kutta time integration schemes. Convergence rates are plotted and stability plots are displayed for forward difference, Runge-Kutta 2, Runge-Kutta 4 and Galerkin implicit Runge-Kutta 2.

3 part demo use of simple matlab commands for bit reversal required in fast fourier transform or fft

The following Matlab project contains the source code and Matlab examples used for 3 part demo use of simple matlab commands for bit reversal required in fast fourier transform or fft. 3-Part Demo Uses of Simple Matlab Commands for Bit Reversed Indices Required in Fast Fourier Transform or FFT

Short time fourier transform (stft) in matlab

The following Matlab project contains the source code and Matlab examples used for short time fourier transform (stft). %% function [t,frequency,Power_spectrum]=fft_s(y,windowlength) %% Inputs : % y: input raw signal % windowlength: window length to take fast fourier transform, it is a % factor of smapling frequency for example one can enter a window length % half of the sampling frequency by enteríng 0.

Matlab package for u_t+lu=n(u,\nabla u) in matlab

The following Matlab project contains the source code and Matlab examples used for matlab package for u_t+lu=n(u,\nabla u) . LiScM2 is a MATLAB package for the numerical solutions of some partial differential evolution equations u_t+Lu=N(u,\nabla u), with boundary and initial conditions, where L is a 2D linear elliptic operator (Laplace operator for this version) and N is a nonlinear part.

Truncated gaussian in matlab

The following Matlab project contains the source code and Matlab examples used for truncated gaussian. % function X = TruncatedGaussian(sigma, range) % X = TruncatedGaussian(sigma, range, n) Generate a pseudo-random vector X of size n, X are drawn from the truncated Gaussian distribution in a RANGE braket; and satisfies std(X)=sigma.

P stage wavelet compression tool in matlab

The following Matlab project contains the source code and Matlab examples used for p stage wavelet compression tool. This package contains a function that performs P-Stage Wavelet compression on an input grayscale or color image and then displays 1) the original image 2) its wavelet transform 3) the compressed wavelet transform 4) the reconstructed image as subplots in a figure so that the user can compare the fidelity of the compressed and original images.

Fourier Series Matlab Code

 Fourier series is a way to represent a wave-like function as a combination of simple sine waves. More formally, it decomposes any periodic function or periodic signal into the sum of a (possibly infinite) set of simple oscillating functions, namely sines and cosines (or, equivalently, complex exponentials).

Fourier Series

Fourier Series

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