【Python】Matplotlib画图（二）——根据函数公式画图_根据函数自动画图

# coding:utf-8
"""
Author: roguesir
Date: 2017/8/30
GitHub: https://roguesir.github.com
Blog: http://blog.csdn.net/roguesir
"""
 
import numpy as np
import matplotlib.pyplot as plt
 
h0 = [0.4,.6,.8] # h0取值
lambda0 = [0.03,0.05,0.07] # λ取值
plt.figure(figsize=(6,4)) # 设置图片大小
x = np.linspace(0, 50, 50) # 在[0，50)中取50个点
 
for i in lambda0:
	for h in h0:
		plt.plot(x, 11+(20*np.exp(-i*x)-h*x)/2,label='lambda='+str(i)+' h='+str(h))
# plt.plot(x,y,图例内容)
plt.legend() # 显示图例
plt.show() # 显示画图
'
运行
运行

输出图片