目录
1.编写Python程序绘制y=x图。
2.绘制表达式为1+sin(x)的图。
3.编写Python程序,使用numpy、pandas、matplotlib三个扩展库在一个画布中绘制4个子图,分别实现以下四个数学函数图形的绘制:
f1(x) = sin(x)
f2(x) = cos(x)
f3(x) = log(x)
f4(x) = exp(x)
1.编写Python程序绘制y=x图。
代码粘贴:
%matplotlib inline
import numpy as np
import pandas as pd
import matplotlib.pyplot as plt
font={'family':"Xiaozhuan",
'size':18}
plt.figure(figsize=(5,5))
x=np.arange(0,10,1)
y=x
plt.plot(x,y,"x--")
plt.xlabel("x")
plt.ylabel("y")
plt.title("y=x")
plt.show()
结果截图:![](https://img-blog.csdnimg.cn/4ffaf2b434154ddb989372464af051fc.png?x-oss-process=image/watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBA5LiN5Lya57yW5aS05Y-R55qE5aWz5a2p,size_11,color_FFFFFF,t_70,g_se,x_16)
2.绘制表达式为1+sin(x)的图。
代码粘贴:
%matplotlib inline
import numpy as np
import pandas as pd
import matplotlib.pyplot as plt
font={'family':"Xiaozhuan",
'size':18}
plt.figure(figsize=(5,5))
x=np.arange(0.0,12.0,0.01)
y=1+np.sin(x)
plt.plot(x,y,"x--")
plt.xlabel("x")
plt.ylabel("y")
plt.title("y=1+sinx")
plt.show()
结果截图:![](https://img-blog.csdnimg.cn/6c59f927d230484995f98d554f9dd96d.png?x-oss-process=image/watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBA5LiN5Lya57yW5aS05Y-R55qE5aWz5a2p,size_11,color_FFFFFF,t_70,g_se,x_16)
3.编写Python程序,使用numpy、pandas、matplotlib三个扩展库在一个画布中绘制4个子图,分别实现以下四个数学函数图形的绘制:
f1(x) = sin(x)
f2(x) = cos(x)
f3(x) = log(x)
f4(x) = exp(x)
代码粘贴:
%matplotlib inline
from matplotlib import pyplot as plt
import numpy as np
import pandas as pd
font={'family':"Kaiti","weight":"bold","size":18}
plt.figure(1)
ax1=plt.subplot(2,2,1)
ax2=plt.subplot(2,2,2)
plt.figure(2)
ax3=plt.subplot(2,2,1)
ax4=plt.subplot(2,2,2)
x=np.arange(0.0,10.0,0.1)
plt.sca(ax1)
plt.plot(x,np.sin(x))
plt.sca(ax2)
plt.plot(x,np.cos(x))
plt.sca(ax3)
plt.plot(x,np.log(x))
plt.sca(ax4)
plt.plot(x,np.exp(x))
plt.figure(1)
plt.show
结果截图:![](https://img-blog.csdnimg.cn/c6d9a1cc568d4626b218ce2bb22c8c42.png?x-oss-process=image/watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBA5LiN5Lya57yW5aS05Y-R55qE5aWz5a2p,size_13,color_FFFFFF,t_70,g_se,x_16)
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