Simple animation -- time evolution of function

[schniefen]

I would like to animate how a function evolves over time. I would like to do this using only plt.blablabla, not ax.blablabla. The function is defined as follows:

import numpy as np
from scipy import special

y_lim=0.5
alpha=1

def pulse(t, x):
    return 1/2*(special.erf((y_lim-x)/np.sqrt(4*alpha*t))-special.erf((-y_lim-x)/np.sqrt(4*alpha*t)))

Reasonable ranges for x and t are:

max_iterations=200
t=np.linspace(0.0001, 3, max_iterations)
x=np.linspace(-3,3, max_iterations)

I appreciate any help.