Is there a reason why subs_expr() won't work here?
sage: version()
'Sage Version 4.7.2, Release Date: 2011-10-29'
sage: t = var('t')
sage: foo = e^t
sage: foo.subs_expr(e==e.n())
e^t
sage:
Use a wild card (a variable that matches everything) to do complicated subs_expr. I would suggest this technique to be written in sage tutorials. It is very useful to me.
sage: t = var('t')
sage: foo = e^t
sage: w0 = SR.wild(0)
sage: foo.subs_expr(e^w0==e.n()^w0)
2.71828182845905^tYou are right about this. There are a few places it shows up if you search for things but it's not there. Why not open a ticket and post a patch to the doc for this? Thanks!
Great. This worked for me, in the much more complicated expression I was actually using (which incidentally would not plot without doing this conversion first). Thanks!
Asked: 13 years ago
Seen: 1,054 times
Last updated: Jan 02 '12
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