Exponential function does not work for diagonal matrices    
   D = diagonal_matrix([0]) exp(D)
Thank you for the report. This is a bug with sparse matrices, which is now tracked at #28935.
As a workaround, you could use:
sage: diagonal_matrix([0], sparse=False).exp()
[1]
Asked: 2019-12-25 21:27:47 +0100
Seen: 317 times
Last updated: Jan 01 '20
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                Copyright Sage, 2010. Some rights reserved under creative commons license. Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.