Calling Sequence
pinv(A,[tol])
Parameters
- A
real or complex matrix
- tol
real number
Description
X = pinv(A) produces a matrix X of the
same dimensions as A' such that:
A*X*A = A, X*A*X = X and both
A*X and X*A are Hermitian .
The computation is based on SVD and any singular values
lower than a tolerance are treated as zero: this tolerance
is accessed by X=pinv(A,tol).
Examples
A=rand(5,2)*rand(2,4);
norm(A*pinv(A)*A-A,1)
Used Functions
pinv function is based on the singular value decomposition
(Scilab function svd).