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mplot2d.py
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mplot2d.py
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#!/usr/bin/env python
import iam_sympy_example
from sympy import Symbol, Basic
from sample import sample
def mplot2d(f, var, show=True):
"""
Plot a 2d function using matplotlib/Tk.
"""
import warnings
warnings.filterwarnings("ignore", "Could not match \S")
try:
import pylab as p
except ImportError:
raise ImportError("Matplotlib is required to use mplot2d.")
if not isinstance(f, (tuple, list)):
f = [f,]
for f_i in f:
x, y = sample(f_i, var)
p.plot(x, y)
p.draw()
if show:
p.show()
if __name__ == "__main__":
from sympy import sqrt, sin, log, pi
x = Symbol('x')
#mplot2d(log(x), (x, 0, 2, 100))
#mplot2d([sin(x), -sin(x)], (x, float(-2*pi), float(2*pi), 50))
mplot2d([sqrt(x), -sqrt(x), sqrt(-x), -sqrt(-x)], (x, -40.0, 40.0, 80))