24.02.2011 01:28, Alexander Eberspächer пишет:
Hello,

On Wednesday, February 23, 2011 9:27:25 PM UTC+1, [email protected] wrote:

and found non zero terms and signal about it with the help of O(x**4).
May be, I other word, it yield real precision of assymptotic expansion.

This is the advantage I see in the variant suggested. However, O(x**3) for
the cos(x) example is fine anyway. The remainder term isn't larger than
O(x**3), and that's maybe all one is generally interested in.

Alex


Well, so can you offer what interface (f.e. options of method, name-token for it) is more convenient and clear for end user for this enhancement?

I think it can be posted directly to the sympy issues tracker [1] if there are no doubts.

[1] http://code.google.com/p/sympy/issues/

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