ó Ąź™\c@ s¤ddlmZmZddlmZmZmZmZddlm Z defd„ƒYZ d„Z ddl m Z mZdd lmZd „Zeed>> from sympy import MatrixSymbol, Determinant, eye >>> A = MatrixSymbol('A', 3, 3) >>> Determinant(A) Determinant(A) >>> Determinant(eye(3)).doit() 1 cC sVt|ƒ}|js.tdt|ƒƒ‚n|jsFtdƒ‚ntj||ƒS(Ns&Input to Determinant, %s, not a matrixsDet of a non-square matrix(Rt is_Matrixt TypeErrortstrt is_squareRRt__new__(tclstmat((sElib/python2.7/site-packages/sympy/matrices/expressions/determinant.pyR s    cC s |jdS(Ni(targs(tself((sElib/python2.7/site-packages/sympy/matrices/expressions/determinant.pytarg!scC s0y|jjƒSWnttfk r+|SXdS(N(Rt_eval_determinanttAttributeErrortNotImplementedError(Rtexpand((sElib/python2.7/site-packages/sympy/matrices/expressions/determinant.pytdoit%s(t__name__t __module__t__doc__R tpropertyRtFalseR(((sElib/python2.7/site-packages/sympy/matrices/expressions/determinant.pyRs cC st|ƒjƒS(sĹ Matrix Determinant Examples ======== >>> from sympy import MatrixSymbol, det, eye >>> A = MatrixSymbol('A', 3, 3) >>> det(A) Determinant(A) >>> det(eye(3)) 1 (RR(tmatexpr((sElib/python2.7/site-packages/sympy/matrices/expressions/determinant.pytdet+s(tasktQ(t handlers_dictcC sjttj|jƒ|ƒr"tjSttj|jƒ|ƒrDtjSttj|jƒ|ƒrftjS|S(sÜ >>> from sympy import MatrixSymbol, Q, assuming, refine, det >>> X = MatrixSymbol('X', 2, 2) >>> det(X) Determinant(X) >>> with assuming(Q.orthogonal(X)): ... print(refine(det(X))) 1 ( RRt orthogonalRRtOnetsingulartZerotunit_triangular(texprt assumptions((sElib/python2.7/site-packages/sympy/matrices/expressions/determinant.pytrefine_Determinant@s N(t __future__RRtsympyRRRRRRRRtsympy.assumptions.askRRtsympy.assumptions.refineR R((((sElib/python2.7/site-packages/sympy/matrices/expressions/determinant.pyts"$