Using 'reduce' and 'map', this code shows how a matrix vector multiplication can be reduced to a single loop.
Because the matrix multiplication is associative; the product can be carried with different order, leading to the same result up to round-off error, MMTIMES usings "optimal" order of binary product to reduce the computational effort...
This submission defines a generic class of matrix-like objects called MatrixObj and a subclass called DataObj. Objects of the class are capable of behaving as matrices, but whose math operators (+,-,*,,.*,,etc...) and other methods can be...
MULTIPROD is a powerful, quick and memory efficient generalization for N-D arrays of the MATLAB matrix multiplication operator (*). While the latter works only with 2-D arrays, MULTIPROD works also with multidimensional arrays. MULTIPROD...
A C++ matrix class for creating matrix objects and easily performing elementary operations between matrix objects including addition, subtraction, multiplication, transposition, and trace.
This directory contains MATLAB functions for the fast multiplication of a Toeplitz matrix times a vector. By using these routines you can avoid storing the entire matrix (using two vectors of lenght n rather than a matrix of size n*n), and also...
Script for the multiplication of linear expressions without coefficient constants. This script returns a polynomial of given expressions. The number of expressions are not restricted and constant may be real or integer.
Example
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Multiplication table (Python)
'sparse' is a matrix class based on a dictionary to store data using 2-element tuples (i,j) as keys (i is the row and j the column index). The common matrix operations such as 'dot' for the inner product, multiplication/division by a...
The library supports only basic matrix operations, not being suitable for large matrices.
It has been tested with: Borland C++ 5.0 (both 16 and 32 bit); Borland C++ 5.5; C++ Builder version 1.0, 3.0, 4.0 and 5.0; MS...
This DHTML script renders the Matrix effect on any short piece of text. It works in both IE4 and NS6 , and downgrades well with the rest.
It will help you to make a N-point Paired matrix for FFT.
This function gives the decimation matrix which after post mulitpling it with the given signal gives the downsampled version of the original signal...
D = decimmtx(x,N)
decimates the given signal by a factor of N.
[h,varargout]=plotColumns(data,varargin) plots columns of a matrix as if each column is a time series
USAGE: plotColumns(data); [h] = plotColumns(t,data); [h] = plotColumns(t,data,{colors}); [h] =...
The function generates sequency(Walsh) ordered Hadamard matrix useful for image processing, signal processing, genetic algorithms etc.
CONV_MTX Convolution matrix. If 'x' is a column vector of length 'nx', then conv_mtx(x,nh) gives a toeplitz matrix 'X' of size (nx+nh-1) times (nh). 'nh' is the length of the column vector 'h' with which 'x' is convolved. Thus...
These functions show some advances about MPF (Matrix Polynomial Fraction) using for represent multivariable models and design multivariable control system.
X must be a N-by-K matrix, N is the number of "candidate" and the K is the number of "judge".
write_matrix_bin(f,m) saves the matrix "m" in a binary file "f". write_matrix_bin is a lot faster than the built in function save(), and takes up much less diskspace than the old "save -v6" which doesn't use... |