Transcript Section 2.2

Organizing Data Into Matrices
◦ Definition 1: A matrix is a rectangular
array of numbers written within brackets.
◦ Write the dimensions of each matrix.
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Each number in a matrix is a matrix element.
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Use the matrix to identify each matrix
element.
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Energy Energy is often measured in British
thermal units (Btus). Write a matrix to
represent the data below. Estimate the
values from the graph.
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Libraries Write a matrix H to represent the
data in the table below. Find element h23.
What does this element represent?
Computer
Book
Parenting
Employment
Instruction
Discussions
Skills
Guidance
Urban
68
56
28
31
Suburban
59
50
24
18
Rural
49
34
15
12
Location