[racket] matrix-solve and approximation errors

2014-04-16 12:18 GMT+02:00 Jens Axel Søgaard <jensaxel at soegaard.net>:
> Hi Laurent,
>
> I think the underlying problem is that the matrix is *very* close to
> an invertible one:

non-invertible


>> (matrix-determinant
>      (matrix [[ 1     0     9/10  1]
>                  [ 0     1     1/10  1]
>                  [ 9/10  1/10 82/100 1]
>                  [ 1     1      1   0]]))
> 0