#20099: test improved evaluation of trigonometric functions
---------------------------+-------------------------------
Reporter: behackl | Owner:
Type: enhancement | Status: new
Priority: minor | Milestone: sage-7.1
Component: symbolics | Keywords: pynac
Merged in: | Authors:
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies: pynac-0.6.3
Stopgaps: |
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In the current [https://github.com/pynac/pynac development version of
pynac] the evaluation of trigonometric functions has been improved. This
enables the following behavior:
{{{
sage: var('k', domain='integer')
k
sage: sin(k*pi)
0
sage: cos(k*pi)
(-1)^k
sage: sin(1 + 2*k*pi)
sin(1)
sage: tan(k*pi)
0
sage: cos(2*k*pi + pi/3)
1/2
}}}
and so on. Additionally, this introduces simplification for the complex
exponential function:
{{{
sage: exp(2*k*pi*I)
sage: 1
}}}
This ticket shall document these changes.
--
Ticket URL: <http://trac.sagemath.org/ticket/20099>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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