Man Scilab

kernel
Scilab Function

kernel - kernel, nullspace

Calling Sequence

W=kernel(A [,tol,[,flag])

Parameters

Description

W=kernel(A) returns the kernel (nullspace) of A . If A has full column rank then an empty matrix [] is returned.

flag and tol are optional parameters: flag = 'qr' or 'svd' (default is 'svd' ).

tol = tolerance parameter (of order %eps as default value).

Examples


A=rand(3,1)*rand(1,3);
A*kernel(A)
A=sparse(A);
clean(A*kernel(A))
 
  

See Also

colcomp ,   fullrf ,   fullrfk ,   linsolve ,  

Author

F.D.;

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