Retrieving value of a squared norm gives a TypeError.
>>> picos.norm(A)
<Norm of a 2×2 Expression: ‖A‖>
>>> picos.norm(A).value
5.464932656113981
>>> (picos.norm(A)**2).value
Traceback (most recent call last):
File "<input>", line 1, in <module>
(picos.norm(A)**2).value
File "/usr/lib/python3.7/site-packages/picos/expressions.py", line 222, in <lambda>
lambda self: self.get_value(),
File "/usr/lib/python3.7/site-packages/picos/expressions.py", line 182, in get_value
value = self.eval()
File "/usr/lib/python3.7/site-packages/picos/expressions.py", line 2706, in eval
return cvx.matrix(val, (1, 1))
TypeError: wrong matrix dimensions