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Which of the following inputs is NOT valid for the plot3 function?

easy📝 Conceptual Q2 of 15
MATLAB - 3D Plotting and Visualization
Which of the following inputs is NOT valid for the plot3 function?
AThree matrices of the same size representing grid points
BA single scalar value for X and vectors for Y and Z
CThree arrays of different lengths
DThree vectors of equal length representing X, Y, and Z coordinates
Step-by-Step Solution
Solution:

  1. Step 1: Check input requirements for plot3

    plot3 requires X, Y, and Z inputs to be vectors or matrices of the same size or length.

  2. Step 2: Identify invalid input

    If the arrays have different lengths, MATLAB cannot plot corresponding points in 3D space.

  3. Final Answer:

    Three arrays of different lengths -> Option C

  4. Quick Check:

    Input sizes must match = A [OK]
Quick Trick: X, Y, Z must be same size or length [OK]
Common Mistakes:
  • Using different length vectors for X, Y, Z
  • Passing scalars without matching sizes
  • Confusing matrix and vector inputs

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