Can you add these matrices?

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Julia Goedecke

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Tatiana Tyukina	said	Ready to use	4 years, 7 months ago
Julia Goedecke	said	Needs to be tested	4 years, 7 months ago

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Tatiana Tyukina 4 years, 7 months ago

Gave some feedback: Ready to use

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Julia Goedecke 4 years, 7 months ago

Published this.

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Julia Goedecke 4 years, 7 months ago

Gave some feedback: Needs to be tested

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Julia Goedecke 4 years, 7 months ago

Created this.

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Question statement

Decide if the following matrices can be added or not.

Give any introductory information the student needs.

			Name	Type	Generated Value

m1	integer	4
m2	integer	4
n1	integer	3
n2	integer	3
d	integer	1
A	matrix	Matrix of size 4×3
B	matrix	Matrix of size 4×3

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random(1..5)

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Description

number of rows of first matrix

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Generated value: `integer`

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$\var{A}+\var{B}$

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Advice

We can add matrices of the same size. That means they have to have the same number of rows and the same number of columns.

Both matrices have size $\var{m1}\times \var{n1}$ , so we can add them. The matrices have the same number of columns, but not the same number of rows. So we cannot add them. The matrices have the same number or rows, but not the same number of columns. So we cannot add them. The matrices have different sizes, so we cannot add them.

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This question is used in the following exams:

Numbas Assignment 2 by Julia Goedecke in Linear Algebra 1st year.
Linear algebra by Farai Nechikwira in Farai's workspace.

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Taxonomy: mathcentre

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Checkpoint description

Tatiana Tyukina 4 years, 7 months ago

Julia Goedecke 4 years, 7 months ago

Julia Goedecke 4 years, 7 months ago

Julia Goedecke 4 years, 7 months ago

Error in variable testing condition

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Generated value: `integer`

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Can you add these matrices?

Metadata

Taxonomy: mathcentre

Taxonomy: Kind of activity

Taxonomy: Context

Contributors

Feedback

History

Comment

Checkpoint description

Tatiana Tyukina 4 years, 7 months ago

Julia Goedecke 4 years, 7 months ago

Julia Goedecke 4 years, 7 months ago

Julia Goedecke 4 years, 7 months ago

Error in variable testing condition

Error

Warning

Generated value: integer

Parts

Gap-fill

Generated value: `integer`