python - Sympy: generate figure with multiple subplots -


i'm using sympy , matplotlib, , wish generate figure multiple plots, how it's done using pylab.subplot when using numpy. should trivial, or thought...

to surprise didn't find simple way it. either (a) evaluate sympy expression @ multiple points , numpy array can use matplotlib or (b) use mechanism similar pylab.subplot in sympy.plotting.

sample code:

import sympy.plotting.plot symplot import sympy sym x = sym.symbol('x') # opens 2 different figures... symplot(x*x, (x, -10, 10)) symplot(x, (x, -10, 10))

any ideas?

for first question, can use lambdify() convert expression function:

import numpy np sympy import *  x, y = symbols("x, y") eq = sqrt(x**2 + y**2)  xa = np.random.rand(10) ya = np.random.rand(10) f = lambdify((x, y),eq,'numpy')  print f(xa, ya) print np.sqrt(xa**2 + ya**2)

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