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# rileyjmurray / sageopt

partial derivative bugfix

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rileyjmurray committed Nov 12, 2019
1 parent 34b6d25 commit 61205194a6127bf10cc751efa5dfdf8f180967e6
Showing with 5 additions and 3 deletions.
1. +2 −0 CHANGELOG.md
2. +1 −1 sageopt/symbolic/polynomials.py
3. +2 −2 sageopt/symbolic/signomials.py
 @@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0 # [0.4.2] - unreleased ## Added - A ``metadata`` field to Signomial and Polynomial objects. ## Changed - ``Signomial.partial`` and ``Polynomial.partial`` to correctly work with nonconstant coefficients. # [0.4.1] - 2019-10-13
 @@ -355,7 +355,7 @@ def partial(self, i): vec = self.alpha[j, :].copy() c = self.c[j] * vec[i] vec[i] -= 1 d[tuple(vec.tolist())] = c d[tuple(vec.tolist())] += c d[self.n * (0,)] += 0 p = Polynomial(d) return p
 @@ -417,9 +417,9 @@ def partial(self, i): d = defaultdict(int) for j in range(self.m): c = self.c[j] * self.alpha[j, i] if c != 0: if (not isinstance(c, __NUMERIC_TYPES__)) or c != 0: vec = self.alpha[j, :].copy() d[tuple(vec.tolist())] = c d[tuple(vec.tolist())] += c d[self.n * (0,)] += 0 p = Signomial(d) return p

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