Why is there a value 4.000000000000001 in the cofactor matrix of problem 4? The matrix is composed entirely of integers, so the cofactors should all be integers as well.
@william .. sorry man-- i overlooked .. i've corrected it now.
sth related to the determinant function- matlab provided that answer. i didn't see that
Distance walked 1D
Column norms of a matrix
How long is the longest prime diagonal?
Calculate distance travelled when given radius and rotations
Check Digit - 02
Sieve of Eratosthenes
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