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[Axiom-math] (no subject)
From: |
Alejandro Jakubi |
Subject: |
[Axiom-math] (no subject) |
Date: |
Wed, 19 Nov 2008 21:56:02 -0300 |
For integrals that depend on a parameter, and the output is a list of
expressions for different cases of this parameter, how can properties on
the parameter be included in the statement to get as output a single
expression? Namely, in this example:
integrate(1/(x^2+a),x)
2 +---+
(x - a)\|- a + 2a x +-+
log(---------------------) x\|a
2 atan(-----)
x + a a
[--------------------------,-----------]
+---+ +-+
2\|- a \|a
Type: Union(List Expression Integer,...)
tell to 'integrate' that a>0, say, and get the 'atan' expression.
I have read a few comments on the Axiom web sites about properties, provisos,
and a command 'Assume', eg here:
http://www.axiom-developer.org/axiom-website/currentstate.html
http://axiom-wiki.newsynthesis.org/DefiniteIntegration
But I have not found yet a hint on how to do it (if possible).
Alejandro Jakubi
- [Axiom-math] (no subject),
Alejandro Jakubi <=