Python 如何在 Matplotlib 中在同一个图形上绘制多个函数？
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时间：2020-08-19 00:38:58 来源:igfitidea点击:
How to plot multiple functions on the same figure, in Matplotlib?
提问by user3277335
How can I plot the following 3 functions (i.e. sin, cosand the addition), on the domain t, in the same figure?
如何在同一个图中的域上绘制以下 3 个函数（即sin，cos和加法）t？
from numpy import *
import math
import matplotlib.pyplot as plt
t = linspace(0, 2*math.pi, 400)
a = sin(t)
b = cos(t)
c = a + b
采纳答案by ThePredator
To plot multiple graphs on the same figure you will have to do:
要在同一个图形上绘制多个图形，您必须执行以下操作：
from numpy import *
import math
import matplotlib.pyplot as plt
t = linspace(0, 2*math.pi, 400)
a = sin(t)
b = cos(t)
c = a + b
plt.plot(t, a, 'r') # plotting t, a separately
plt.plot(t, b, 'b') # plotting t, b separately
plt.plot(t, c, 'g') # plotting t, c separately
plt.show()
回答by leeladam
Just use the function plotas follows
只需plot按如下方式使用该功能
figure()
...
plot(t, a)
plot(t, b)
plot(t, c)
回答by Jash Shah
Perhaps a more pythonic way of doing so.
也许是一种更 Pythonic 的方式。
from numpy import *
import math
import matplotlib.pyplot as plt
t = linspace(0,2*math.pi,400)
a = sin(t)
b = cos(t)
c = a + b
plt.plot(t, a, t, b, t, c)
plt.show()
