Matrix Flashcard #1

Front

What is the number of rows in a 7 x 3 matrix?

Back

7

Front

What are the dimensions of a matrix?

Back

The dimensions of a matrix are given in the form of rows x columns.

Front

What is the result of subtracting 3 from -4?

Back

-1

Front

What is the value of element R_3,2 in a matrix R?

Back

8

Front

Can you add two matrices with different dimensions?

Back

No, you cannot add two matrices if their dimensions do not match.

Front

What is a matrix?

Back

A matrix is a rectangular array of numbers arranged in rows and columns.

Front

How do you denote the size of a matrix?

Back

The size of a matrix is denoted by the number of rows and columns it has.

Front

What is the result of adding two matrices A and B of size 2x2?

Back

The result is another 2x2 matrix where each element is the sum of the corresponding elements of A and B.

Front

What is the identity matrix?

Back

An identity matrix is a square matrix with ones on the diagonal and zeros elsewhere.

Front

What is the transpose of a matrix?

Back

The transpose of a matrix is obtained by swapping its rows and columns.