Typically, the repr function returns a string that can be executed and yield the same value as the object. In sageMath, this is not the case for a matrix : repr has the same behaviour as the str function has and str applied to a matrix returns a "nice" representation of it:
M=matrix([[1, 1],[1, 1]])
print(repr(M)==str(M))
print(M)
printing
True
[1 1]
[1 1]
This is not the behaviour I was expecting. To compare with Numpy:
from numpy import array
M = array([[1, 1], [1, 1]])
print(repr(M))
print()
print(M)
outpouting
array([[1, 1],
[1, 1]])
[[1 1]
[1 1]]
Do I need to write my own repr function when applied to a matrix?
