phs's profile - activity

overview network karma followed questions activity

2016-08-06 22:54:19 +0200	received badge	● Nice Question (source)
2014-11-28 19:07:42 +0200	commented answer	Can SAGE compute with ordinals? Thanks a 1.0E06 for the pointer to the Ordinal Calculator ! I'll try it right away...
2014-11-28 16:26:23 +0200	asked a question	Can SAGE compute with ordinals? Computing with ordinal expressions like $(\omega^{\omega^2+1}+\omega)^{\omega+2}$ is not very different from handling polynomials, at least if we restrict to ordinals below $\epsilon_0$ written in Cantor Normal Form. I did not see ordinals mentioned in the manual. Does SAGE know how to do such computations? I'm interested in basic operations like addition, multiplication, exponentiation, comparison, and it is painful (and risky) to do them by hand.
2014-06-29 18:53:41 +0200	received badge	● Famous Question (source)
2014-06-29 18:53:41 +0200	received badge	● Popular Question (source)
2014-06-29 18:53:41 +0200	received badge	● Notable Question (source)
2013-07-12 01:50:05 +0200	received badge	● Student (source)
2013-07-11 16:58:36 +0200	received badge	● Supporter (source)
2013-07-11 15:36:09 +0200	asked a question	simple(?) exponentiation simplification I'm beginning with `sage`. It sure looks great but I still have to understand what is the actual meaning of what I type in :-( This is where I am currently stuck: `sage: simplify( (a/b)^c - (a^c)/(b^c) ) -a^c/b^c + (a/b)^c` I would have loved to get a nice clean $0$. What do I need to tell `sage` so that it sees that $(a/b)^c$ and $a^c/b^c$ are the same?