MUNCHABLE MATRICES

Munchable Matrices is a graphic story on the meaning of matrix multiplication. Matrices store and manipulate data and are used in machine learning processes of neural networks.

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See also:

• Transformative Matrices graphic story
• Understanding Neural Networks infographic
• Mathematics of Neural Networks infographic

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COVER

^{_{See Gadanidis, Li, & Tan (2024)}}

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PAGE 1: Frequency tables

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PAGE 2: Matrices

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PAGE 3: Matrix multiplication

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PAGE 4

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DO THE MATH

• Complete the matrix operations shown on the right.
  • What is the meaning of the first operation?
  • What is the meaning of the second operation?
• Study the matrix operations below:
  • Which operations are possible?
  • Why?
  • What would be the dimensions of the resulting matrices?

• Describe a general rule for each of the following:
  • Adding matrices:
    • If 2 matrices can be added, what must be true about their dimensions?
    • What would be the dimensions of the resulting matrix?
  • Multiplying matrices:
    • If 2 matrices can be multiplied, what must be true about their dimensions?
    • What would be the dimensions of the resulting matrix?

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PAGE 5: Matrices & neural networks

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REFLECT

What did you learn?

• What did you learn about matrix addition and multiplication?
• What was most interesting to you?
• What surprised you?
• What else do you want to know?

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