2024-01-29 19:19:09 +0200 received badge ● Popular Question (source) 2023-09-18 22:59:12 +0200 received badge ● Notable Question (source) 2023-01-01 22:18:48 +0200 received badge ● Popular Question (source) 2021-05-27 23:34:05 +0200 commented question Set Precision or Decimal places in symbolic expression Thank you! Worked like a charm! 2021-05-27 23:33:16 +0200 commented answer is it possible to round numbers in symbolic expression A small improvement to the code proposed so as to prevent integers from being cast to float as I noticed that this was t 2021-05-27 16:34:00 +0200 asked a question Set Precision or Decimal places in symbolic expression Set Precision or Decimal places in symbolic expression Hello. I am currently working with some cumbersome symbolic expre 2021-04-29 00:15:12 +0200 received badge ● Nice Question (source) 2021-04-28 17:37:06 +0200 commented answer Issue with inversion of complex symbolic array initialized with numpy Thank you so much. I would like to also add something that I had to modify in my code. Because I use python, I had to 2021-04-28 17:33:31 +0200 marked best answer Issue with inversion of complex symbolic array initialized with numpy Hello! I am trying to invert a symbolic matrix that is initialized with a combination of numpy arrays and I get an error. Below i present a simple code that gives the error. import numpy as np a = np.zeros((5,5) , dtype = 'complex') np.fill_diagonal(a,1) b = var('x')*a c = matrix(b) c.inverse()  Gives the error: ECL says: THROW: The catch MACSYMA-QUIT is undefined. What I have noticed up until now is that the issue stems from the data type. When I try casting the numpy array to float before turning it into a matrix, it works. However, my actual code makes use of complex coefficients. I believe it might have to do with how the imaginary part is represented in SageMath in comparison to numpy. ( j vs I ) When I manually create the symbolic array with I for the imaginary part, the .inverse() has no issue. 2021-04-28 17:33:31 +0200 received badge ● Scholar (source) 2021-04-28 17:33:29 +0200 received badge ● Supporter (source) 2021-04-28 14:46:08 +0200 received badge ● Student (source) 2021-04-28 13:44:02 +0200 asked a question Issue with inversion of complex symbolic array initialized with numpy Issue with inversion of complex symbolic array initialized with numpy Hello! I am trying to invert a symbolic matrix t