三维表面图

画出三维表面图

Z

=

sin

⁡

(

x

2

+

y

2

)

\text{画出三维表面图}Z=\sin \left( \sqrt{x^2+y^2} \right)

画出三维表面图Z=sin(x2+y2
​)

import pylab as plt
import numpy as np
ax=plt.axes(projection="3d")
X=np.arange(-6,6,0.25)
Y=np.arange(-6,6,0.25)
X,Y=np.meshgrid(X,Y)
Z=np.sin(np.sqrt(X**2+Y**2))
surf=ax.plot_surface(X,Y,Z,cmap="coolwarm")
plt.colorbar(surf)
plt.show()

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三维曲线图

画出三维曲面图

Z

=

50

sin

⁡

(

x

+

y

)

\text{画出三维曲面图}Z=50\sin \left( x+y \right)

画出三维曲面图Z=50sin(x+y)

import pylab as plt
import numpy as np
x=np.linspace(-4,4,100)
x,y=np.meshgrid(x,x)
z=50*np.sin(x+y)
ax=plt.axes(projection="3d")
ax.plot_surface(x,y,z,cmap="coolwarm")
plt.show()

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三维曲线

画出三维曲线

x

=

s

2

sin

⁡

s

,

y

=

s

2

cos

⁡

s

,

s

=

s

,

s

∈

[

−

50

,

50

]

\text{画出三维曲线}x=s^2\sin s,y=s^2\cos s,s=s,s\in \left[ -50,50 \right]

画出三维曲线x=s2sins,y=s2coss,s=s,s∈[−50,50]

import pylab as plt
import numpy as np
s=np.linspace(-50,50,1000)
x=s**2*np.sin(s);y=s**2*np.cos(s)
ax=plt.axes(projection="3d")
ax.plot(x,y,s,"k")
plt.show()

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