Mathematical analysis

Successive over relaxation (sor) of finite difference method solution to laplace's equation in matlab

The following Matlab project contains the source code and Matlab examples used for successive over relaxation (sor) of finite difference method solution to laplace's equation. Authors - Sathya Swaroop Ganta, Kayatri, Pankaj Arora, Sumanthra Chaudhuri, Projesh Basu, Nikhil Kumar CS Course - Computational Electromegnetics Instructor - Dr.

2d laplace equation in matlab

The following Matlab project contains the source code and Matlab examples used for 2d laplace equation. Laplace's equation is solved in 2d using the 5-point finite difference stencil using both implicit matrix inversion techniques and explicit iterative solutions. The boundary conditions used include both Dirichlet and Neumann type conditions.

Findfft returns fft amplitude and frequency vectors from input data in matlab

The following Matlab project contains the source code and Matlab examples used for findfft returns fft amplitude and frequency vectors from input data . findFFT returns fft amplitude and frequency vectors from input data, with options to return normal fft, zeropadded fft, windowed fft, or both windowed and zeropadded to remove spectral leakage.

Overlap add method using circular convolution technique in matlab

The following Matlab project contains the source code and Matlab examples used for overlap add method using circular convolution technique. Overlap Add Method: The overlap–add method is an efficient way to evaluate the discrete convolution of a very long signal with a finite impulse response (FIR) filter where h[m] = 0 for m outside the region [1, M].

Stft Matlab Code

The short-time Fourier transform (STFT), or alternatively short-term Fourier transform, is a Fourier-related transform used to determine the sinusoidal frequency and phase content of local sections of a signal as it changes over time.

The following matlab project contains the source code and matlab examples used for stft.

Inverse short time fourier transformation (istft) with matlab implementation

The following Matlab project contains the source code and Matlab examples used for inverse short time fourier transformation (istft) with matlab implementation. The present code is a Matlab function that provides an Inverse Short-Time Fourier Transformation (ISTFT) of a given spectrogram stft(f, t) with time across columns and frequency across rows.

Dct Matlab Code

A discrete cosine transform (DCT) expresses a finite sequence of data points in terms of a sum of cosine functions oscillating at different frequencies. DCTs are important to numerous applications in science and engineering, from lossy compression of audio (e.g. MP3) and images (e.g. JPEG) (where small high-frequency components can be discarded), to spectral methods for the numerical solution of partial differential equations.

Ct reconstruction package in matlab

The following Matlab project contains the source code and Matlab examples used for ct reconstruction package . Set of functions performing ct reconstruction tasks like a radon transformation, a simple backprojection, a filtered backprojection using a convolution in the spatial domain, a filtered backprojection using a 2D Fourier transformation, and a filtered back projection using the central slice theorem.

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