[Solved] Why does this code raise an error?import numpy as np import matplotlib.pyplot as plt fig = plt.figure() ax = fig.add_subplot(111, projection='3d') X = np.linspace(-1, 1, 10) Y = np.... | Matplotlib

Matplotlib - 3D Plotting

Why does this code raise an error?

import numpy as np
import matplotlib.pyplot as plt
fig = plt.figure()
ax = fig.add_subplot(111, projection='3d')
X = np.linspace(-1, 1, 10)
Y = np.linspace(-1, 1, 10)
Z = np.sin(X * Y)
ax.plot_surface(X, Y, Z)
plt.show()

Aplot_surface requires integer arrays

Bsin function cannot be applied element-wise

CMissing import for mpl_toolkits.mplot3d

DX, Y, Z must be 2D arrays of the same shape, but here they are 1D or mismatched

Step-by-Step Solution

Solution:

Step 1: Check shapes of X, Y, Z
X and Y are 1D arrays; Z is computed element-wise but results in 1D array, not 2D meshgrid shape.
Step 2: plot_surface requires 2D arrays
plot_surface needs X, Y, Z as 2D arrays of the same shape, usually created by meshgrid.
Final Answer:
X, Y, Z must be 2D arrays of the same shape, but here they are 1D or mismatched -> Option D
Quick Check:
Use meshgrid to create 2D arrays for surface plots [OK]

Quick Trick: Use meshgrid to create 2D arrays for X, Y, Z [OK]

Common Mistakes:

Passing 1D arrays directly to plot_surface
Assuming sin cannot be applied element-wise
Forgetting to import 3D toolkit

Master "3D Plotting" in Matplotlib

9 interactive learning modes - each teaches the same concept differently

Learn Why Deep Visual Try Challenge Project Recall Time

More Matplotlib Quizzes

Why does this code raise an error?

Step 1: Check shapes of X, Y, Z

Step 2: plot_surface requires 2D arrays

Final Answer:

Quick Check:

Want More Practice?