python - Converting expression involving tranpose of vector to numerical function with lambdify -

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i have written script in python uses sympy compute couple of vector/matrix formulas. however, when try convert functions can evaluate sympy.lambdify, a

syntaxerror : eol while scanning string literal

here's code same error, can see mean. 

import sympy x = sympy.matrixsymbol('x',3,1) f = sympy.lambdify(x, x.t*x)

so, syntax error has expression "x'.dot(x)" , conversion of ".t" '.

how can work around correctly define f above lambdify?

found work around, although not cleanest looking solution... works.

use implemented_function() method sympy define function. read full documentation here: http://docs.sympy.org/latest/modules/utilities/lambdify.html

here code:

import sympy import numpy np sympy.utilities.lambdify import implemented_function   x = sympy.matrixsymbol('x',3,1)  f = implemented_function(sympy.function('f'), lambda x: x.t*x)  lam_f= sympy.lambdify(x, f(x))

hope solves problem :)


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