Namespace Chippyash\Math\Matrix\Special

Chebspec Matrix CHEBSPEC Chebyshev spectral differentiation matrix. C = CHEBSPEC(N, K) is a Chebyshev spectral differentiation matrix of order N. K = 0 (the default) or 1. For K = 0 (`no boundary conditions'), C is nilpotent, with C^N = 0 and it has the null vector ONES(N,1). C is similar to a Jordan block of size N with eigenvalue zero. For K = 1, C is nonsingular and well-conditioned, and its eigenvalues have negative real parts. For both K, the computed eigenvector matrix X from EIG is ill-conditioned (MESH(REAL(X)) is interesting).

Functional Matrix Create a matrix given a function for each row, column index Particularly useful when matrix content is a function of row,col index

Identity Matrix Create an Identity (a square matrix)

Ones Matrix Create a matrix or vector filled with 1

Zeroes Matrix Create a matrix or vector filled with 0