docs: improve doctests for ndarray instances in blas/ext/ndarray/slinspace
#31630
| Job | Run time |
|---|---|
| 2m 36s | |
| 2m 36s |
blas/ext/ndarray/slinspace
#31630
| Job | Run time |
|---|---|
| 2m 36s | |
| 2m 36s |