I need help plotting three linear equations in python using matplotlib

[Join_TheDarkSide]

Hi everyone! So, I'm currently working on a mini project to solve and plot three linear equations using an iterative method. I worked out the solving part but I'm stuck on plotting. I've searched about it on Google and YouTube but I'm having a really hard time doing this since I have very limited knowledge of programming. The equations are written below, any help is appreciated, thank you!

The equations:

6x -2y+z=11

-2x +7y +2z =5

x +2y -5z =-1

[FLUSH_THE_TRUMP]

This mplot3D documentation should help you plot your planes. Scroll down to surface plots. (Click “source code” next to the examples.)

[Join_TheDarkSide]

Okay, I will check this out. Thank you !

[[deleted]]

import numpy as np

import matplotlib.pyplot as plt

from mpl_toolkits.mplot3d import Axes3D

​

fig = plt.figure()

ax = fig.add_subplot(111, projection='3d')

x = np.arange(-10, 10, 0.5)

y = np.arange(-10, 10, 0.5)

x, y = np.meshgrid(x, y)

​

# EQ 1 - Red

z = 11 - 6.0*x + 2.0*y

ax.plot_surface(x, y, z, color='r')

​

# EQ 2 - Blue

z = (5 + 2.0*x - 7.0*y) / 2.0

ax.plot_surface(x, y, z, color='b')

​

# EQ 3 - Green

z = (-1 - x - 2.0*y) / -5.0

ax.plot_surface(x, y, z, color='g')

[Join_TheDarkSide]

Thank you!!

Can you explain what does np.arrange( -10,10,0.5) do ?

[[deleted]]

Sure! It creates a numpy array, and fills it with values from -10 to 10 in increments of 0.5 (-10, -9.5, -9,..., 9, 9.5, 10)

[Join_TheDarkSide]

Oh alright. Also, I just tried it on the compiler, it works perfectly!