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4 cards from this section. Quick, good the night before a test.
Define a matrix.
Think about rows and columns.
What is a row matrix?
It’s the opposite of a column matrix.
What defines a matrix?
Visualize how numbers might be arranged.
True or false: A zero matrix has at least one non-zero element.
Think about what elements are present.
Given the matrix A = [[1, 2, 3], [0, 4, 5]], determine the type of matrix and explain why.
Count the rows and columns carefully.
Create a 3x3 identity matrix and demonstrate how multiplication with another matrix works.
Remember multiplication rules for matrices.
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