（82）--用代码实现简谐运动

# 模拟实现简谐运动

# temp.py

import matplotlib.pyplot as plt
import numpy as np

def f(t):
    return np.cos(2 * np.pi * t)

a = np.arange(0.0,5.0,0.02)

plt.plot(a,f(a))
plt.xlabel('横坐标(时间)',fontproperties='Kaiti',fontsize=14,color='red')
plt.ylabel('纵坐标(振幅)',fontproperties='SimHei',fontsize=18,color='red')
plt.title('简谐运动 y=cos(2πx)',fontproperties='SimHei',fontsize=18,color='green')
plt.grid(True)
plt.axis([-1,6,-2,2])
# plt.text(3,1,'这是一条牛逼的简谐运动',fontproperties='SimHei',fontsize=12,color='red')
plt.annotate('牛逼曲线',xy=(3,1),xytext=(4,1.5),arrowprops=dict(facecolor='black',shrink=0.2),fontproperties='SimHei',fontsize=12,color='red')


plt.show()

# console

runfile('C:/Users/cz/.spyder-py3/temp.py', wdir='C:/Users/cz/.spyder-py3')

runfile('C:/Users/cz/.spyder-py3/temp.py', wdir='C:/Users/cz/.spyder-py3')



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