Mercurial > octave-nkf
diff liboctave/array/fDiagMatrix.cc @ 18481:16b0cd465ecd
Handle special case of 0 for pinv with Diagonal matrices.
* CDiagMatrix.cc (pseudo_inverse), dDiagMatrix.cc (pseudo_inverse),
fCDiagMatrix.cc (pseudo_inverse), fDiagMatrix.cc (pseudo_inverse):
Check for special case where element is 0 to avoid a division by
zero error.
author | Rik <rik@octave.org> |
---|---|
date | Mon, 17 Feb 2014 10:04:27 -0800 |
parents | c5a101de2d88 |
children | 1fa5bba16218 |
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--- a/liboctave/array/fDiagMatrix.cc Sat Feb 15 20:19:42 2014 -0800 +++ b/liboctave/array/fDiagMatrix.cc Mon Feb 17 10:04:27 2014 -0800 @@ -302,10 +302,11 @@ for (octave_idx_type i = 0; i < len; i++) { - if (std::abs (elem (i, i)) < tol) + float val = std::abs (elem (i, i)); + if (val < tol || val == 0.0f) retval.elem (i, i) = 0.0f; else - retval.elem (i, i) = 1.0f / elem (i, i); + retval.elem (i, i) = 1.0f / val; } return retval;