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Unexpected result calculating the determinant of a singular matrix (42S)
10-28-2019, 08:29 AM
Post: #29
RE: Unexpected result calculating the determinant of a singular matrix (42S)
Ah yes indeed, you are right. So it is not impossible to have a 7x7 with integer elements < 100 and a condition number > 1e15, so that the cheat would not work.
Here's a 2x2 for which it fails:

Code:
[[ 49'999'999 49'999'998 ]
 [ 50'000'000 49'999'999 ]]

Cheers, Werner

41CV†,42S,48GX,49G,DM42,DM41X,17BII,15CE,DM15L,12C,16CE
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RE: Unexpected result calculating the determinant of a singular matrix (42S) - Werner - 10-28-2019 08:29 AM



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