Comment #26 on issue 2476 by asmeu...@gmail.com: nth order Derivative
http://code.google.com/p/sympy/issues/detail?id=2476
Instead of inventing new syntax for this, I wonder if it would be better to
instead create an object that can represent repeating an argument to a
function n times, where n is symbolic. This would allow us to represent
things like nth order integral as well. In general, it would let us
represent f(x, ..., x), where there are n x's, for symbolic n.
Objects would then need a way to define that they know how to represent n
repetitions of their arguments. For example, an nth derivative. Another
simple example is that Mul(x, ..., x) with n x's is just Pow(x, n). One
could even use this object to represent Knuth up arrow notation.
A similar idea is a function that represents n compositions of a function,
where n is symbolic (like f(...f(x)...)).
Any idea what to call these things, and how they should be implemented?
--
You received this message because this project is configured to send all
issue notifications to this address.
You may adjust your notification preferences at:
https://code.google.com/hosting/settings
--
You received this message because you are subscribed to the Google Groups
"sympy-issues" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to sympy-issues+unsubscr...@googlegroups.com.
To post to this group, send email to sympy-issues@googlegroups.com.
Visit this group at http://groups.google.com/group/sympy-issues?hl=en.
For more options, visit https://groups.google.com/groups/opt_out.