import matplotlib.pyplot as pl import numpy as np from pylab import * x= np.linspace(-np.pi,np.pi,256,endpoint=True) y=np.cos(x) y1=np.sin(x) pl.plot(x,y) pl.plot(x,y1) title("Functons sin and $\cos$") xlim(-3.0,3.0) ylim(-1.0,1.0) xticks([-np.pi,-np.pi/2.0,0,np.pi/2,np.pi],[r'$-/pi$',r'$-\pi/2$',r'$0$',r'$+\pi/2$',r'$+\pi$']) yticks([-1,0,+1],[r'$-1$',r'$0$',r'$+1$']) pl.show()
