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83996
2022 Nov 09
1
det(diag(c(NaN, 1))) should be NaN, not 0
Hello,
Currently, determinant(A) calculates the determinant of 'A' by factorizing
A=LU and computing prod(diag(U)) [or the logarithm of the absolute value].
The factorization is done by LAPACK routine DGETRF, which gives a status
code INFO, documented [1] as follows:
*> INFO is INTEGER
*> = 0: successful exit
*> < 0: if INFO = -i, the i-th