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| author | Charles Harris <charlesr.harris@gmail.com> | 2010-02-27 08:01:35 +0000 |
|---|---|---|
| committer | Charles Harris <charlesr.harris@gmail.com> | 2010-02-27 08:01:35 +0000 |
| commit | 4e59ff6240c9d6dc34e4b8b66d83f04a28ef16a2 (patch) | |
| tree | de61beef144344b1f566fe630a36e408e045706a /numpy/polynomial | |
| parent | 7004a5a3652d5131ef9144ead7bc7cc549f0fae2 (diff) | |
| download | numpy-4e59ff6240c9d6dc34e4b8b66d83f04a28ef16a2.tar.gz | |
BUG: Fix bug in lbnd implementation of the integ method of the Chebyshev and
Polynomial classes.
Diffstat (limited to 'numpy/polynomial')
| -rw-r--r-- | numpy/polynomial/polytemplate.py | 8 | ||||
| -rw-r--r-- | numpy/polynomial/tests/test_chebyshev.py | 2 | ||||
| -rw-r--r-- | numpy/polynomial/tests/test_polynomial.py | 2 |
3 files changed, 8 insertions, 4 deletions
diff --git a/numpy/polynomial/polytemplate.py b/numpy/polynomial/polytemplate.py index 29691496b..f91e2d5e2 100644 --- a/numpy/polynomial/polytemplate.py +++ b/numpy/polynomial/polytemplate.py @@ -455,12 +455,12 @@ class $name(pu.PolyBase) : `${nick}der` : similar function for derivative. """ - off, scl = pu.mapparms($domain, self.domain) + off, scl = self.mapparms() if lbnd is None : lbnd = 0 else : - lbnd = off + scl*x - coef = ${nick}int(self.coef, m, k, lbnd, scl) + lbnd = off + scl*lbnd + coef = ${nick}int(self.coef, m, k, lbnd, 1./scl) return self.__class__(coef, self.domain) def deriv(self, m=1): @@ -486,7 +486,7 @@ class $name(pu.PolyBase) : `${nick}int` : similar function for integration. """ - off, scl = pu.mapparms(self.domain, $domain) + off, scl = self.mapparms() coef = ${nick}der(self.coef, m, scl) return self.__class__(coef, self.domain) diff --git a/numpy/polynomial/tests/test_chebyshev.py b/numpy/polynomial/tests/test_chebyshev.py index 4579902ce..10e3fdafa 100644 --- a/numpy/polynomial/tests/test_chebyshev.py +++ b/numpy/polynomial/tests/test_chebyshev.py @@ -419,6 +419,8 @@ class TestChebyshevClass(TestCase) : def test_integ(self) : p = self.p2.integ() assert_almost_equal(p.coef, ch.chebint([1,2,3], 1, 0, scl=.5)) + p = self.p2.integ(lbnd=0) + assert_almost_equal(p(0), 0) p = self.p2.integ(1, 1) assert_almost_equal(p.coef, ch.chebint([1,2,3], 1, 1, scl=.5)) p = self.p2.integ(2, [1, 2]) diff --git a/numpy/polynomial/tests/test_polynomial.py b/numpy/polynomial/tests/test_polynomial.py index 8386aed10..936375a80 100644 --- a/numpy/polynomial/tests/test_polynomial.py +++ b/numpy/polynomial/tests/test_polynomial.py @@ -393,6 +393,8 @@ class TestPolynomialClass(TestCase) : def test_integ(self) : p = self.p2.integ() assert_almost_equal(p.coef, poly.polyint([1,2,3], 1, 0, scl=.5)) + p = self.p2.integ(lbnd=0) + assert_almost_equal(p(0), 0) p = self.p2.integ(1, 1) assert_almost_equal(p.coef, poly.polyint([1,2,3], 1, 1, scl=.5)) p = self.p2.integ(2, [1, 2]) |