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2021-01-01 14:06:04 +0100 commented answer bug? multiply symbolic exponents

A nice beginning to 2021: this answer led me to some new-to-me math, to a new appreciation of sage/sympy, and to gratitude for this forum. Thanks--and happy new year!

2021-01-01 11:50:08 +0100 asked a question bug? multiply symbolic exponents

sage: reset() sage: var('a b c x y z') (a, b, c, x, y, z)

sage: assert( (e^x)^y == e^(x*y) )

AssertionError Traceback (most recent call last) /Users/marks/mysage/sage-9.0/local/lib/python3.7/site-packages/sage/all_cmdline.py in <module>() ----> 1 assert( (ex)y == e*(xy) )

AssertionError: sage: assert( (e^2)^3 == e^(2*3) ) sage:

2021-01-01 11:47:14 +0100 asked a question bug? multiply symbolic exponents

Is this a bug ?

sage: var('a b c x y z')
(a, b, c, x, y, z)
sage: assert( (e^x)^y == e^(x*y) )
---------------------------------------------------------------------------
AssertionError                            Traceback (most recent call last)
/Users/marks/mysage/sage-9.0/local/lib/python3.7/site-packages/sage/all_cmdline.py in <module>()
----> 1 assert( (e**x)**y == e**(x*y) )

AssertionError: 
sage: assert( (e^2)^3 == e^(2*3) )
sage:
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2019-10-11 23:46:14 +0100 asked a question how to unlock sagemath 8.8 on MacOS 10.15 Catalina?

Sagemath 8.8 won't run on MacOS 10.15 because of security locks. The system objects to software packages from "unknown" sources, like python and sage. It's possible to instruct the system to accept a package, but I've been able to do that only manually, one package at a time--a boring job withe sagemath's hundreds (?) of packages.

Help? Hints? Thanks!

2019-07-28 18:36:17 +0100 commented question no graphics output when running python script via "sage -python script.py"

Similar problem. Please help!

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