User guide

32 Singularity Tolerance
Thetoleranceusedtodeterminewhetherornotamatrixissingularcanbechanged.The
defaultvalueis1.0e-14forboththeLUandtheCholeskydecompositions.Thetolerance
foreachdecompositioncanbechangedseparately.Thefollowingoperatorsareaffected
byachangeinthetolerance:
Crout LU Decomposition
crout(x) 
croutp(x) 
inv(x) 
det(x) 
y/x whenneitherxnoryisscalarandxissquare.
Cholesky Decomposition
chol(x) 
invpd(x) 
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