#!/usr/bin/env python from pylab import * font = {'family' : 'serif', 'color' : 'r', 'weight' : 'normal', 'size' : 12, } def f(t): s1 = cos(2*pi*t) e1 = exp(-t) return multiply(s1,e1) t1 = arange(0.0, 5.0, 0.1) t2 = arange(0.0, 5.0, 0.02) plot(t1, f(t1), 'bo', t2, f(t2), 'k') title('Damped exponential decay', font, size='large', color='r') text(2, 0.65, r'$\cos(2 \pi t) \exp(-t)$', color='k') xlabel('time (s)', font, style='italic') ylabel('voltage (mV)', font) show()