Is there something wrong with the factorization of expressions containing exponentials ?
I obtain the following strange results (Sagemath 8.6):
factor(exp(-x)+2*exp(x)) ---> 3*e^x,
factor(exp(-x)+x*exp(-x)) ---> (x + 1)*e^x
Any suggestions welcomed.
Thanks for the report. Looks like a terrible bug! It was introduced in SageMath 8.4: it is already there, while in SageMath 8.3, we get a mathematically correct result:
sage: factor(exp(-x)+2*exp(x))
(2*e^(2*x) + 1)*e^(-x)I've opened the Trac ticket #27304 for it.
Thanks a lot for the reply. The bug is also present in cocalc.
Asked: 6 years ago
Seen: 811 times
Last updated: Feb 16 '19
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