How can you combine FuncAnimation with numpy to efficiently animate a scatter plot of points moving in a circle?

hard📝 Application Q9 of 15

Matplotlib - Animations

How can you combine FuncAnimation with numpy to efficiently animate a scatter plot of points moving in a circle?

AUse matplotlib's scatter without updating data in update function

BUse numpy arrays for x and y, update with cos and sin of frame angle, then set_offsets

CUse numpy arrays but update only x, keep y constant

DUse Python lists for x and y, update with random values each frame

Step-by-Step Solution

Solution:

Step 1: Use numpy for efficient math
Numpy arrays allow vectorized computation of x and y positions using cos and sin.
Step 2: Update both x and y each frame
Calculate new positions based on frame angle to simulate circular motion, then update plot data.
Final Answer:
Use numpy arrays for x and y, update with cos and sin of frame angle, then set_offsets -> Option B
Quick Check:
Combine numpy math with FuncAnimation for smooth circle animation [OK]

Quick Trick: Use numpy cos/sin with frame angle for circular motion [OK]

Common Mistakes:

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