神奇的表白函数

我们用Python语言写下这个程序

from pylab import *

x = linspace(-np.sqrt(3), np.sqrt(3), 5000)
y =((3-x*x)**(1/2))*(np.sin(np.pi*x*40))+((x**2)**(1/3))
title("y=(3-x²)½ * sin(40*π*x)+x⅔")
plot(x, y,'r')
ax = gca()
ax.spines['right'].set_color('none')
ax.spines['top'].set_color('none')

ax.xaxis.set_ticks_position('bottom')
ax.spines['bottom'].set_position(('data', 0))

ax.yaxis.set_ticks_position('left')
ax.spines['left'].set_position(('data', 0))
show()