details: http://hg.sympy.org/sympy/rev/b13aebd9dc64
changeset: 1806:b13aebd9dc64
user: Ondrej Certik <[EMAIL PROTECTED]>
date: Fri Oct 17 15:48:22 2008 +0200
description:
Tests for the limits in the issue #693 added.
diffs (19 lines):
diff -r 30afdf8fa519 -r b13aebd9dc64 sympy/series/tests/test_limits.py
--- a/sympy/series/tests/test_limits.py Fri Oct 17 15:48:22 2008 +0200
+++ b/sympy/series/tests/test_limits.py Fri Oct 17 15:48:22 2008 +0200
@@ -1,5 +1,5 @@
from sympy import limit, exp, oo, log, sqrt, Limit, sin, floor, cos, ceiling, \
- atan, Symbol
+ atan, Symbol, S
from sympy.abc import x, y, z
from sympy.utilities.pytest import XFAIL
@@ -138,3 +138,8 @@
def test_bug693a():
assert sin(sin(x+1)+1).limit(x,0) == sin(sin(1)+1)
+
+def test_issue693():
+ assert limit( (1-cos(x))/x**2, x, S(1)/2) == 4 - 4*cos(S(1)/2)
+ assert limit(sin(sin(x+1)+1), x, 0) == sin(1 + sin(1))
+ assert limit(abs(sin(x+1)+1), x, 0) == 1 + sin(1)
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