Adding 2x2 matrices

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From users who are members of Linear Algebra 1st year :

Julia Goedecke

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Ready to use

4 years, 8 months ago

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Julia Goedecke 4 years, 8 months ago

Published this.

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Julia Goedecke 4 years, 8 months ago

Saved a checkpoint:

Fairly simple, so should be fine. I made it just one part.

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Julia Goedecke 4 years, 8 months ago

Gave some feedback: Ready to use

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Julia Goedecke 4 years, 8 months ago

Gave some feedback: Needs to be tested

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Julia Goedecke 4 years, 8 months ago

Created this as a copy of copy of Tatiana's copy of Matrices 1.

Name	Status	Author	Last Modified
Adding 2x2 matrices	Ready to use	Julia Goedecke	31/08/2021 10:06
Adding matrices of different sizes	Ready to use	Julia Goedecke	25/08/2021 12:57
Adding vectors	Ready to use	Julia Goedecke	25/08/2021 12:57
Adding and subtracting vectors	Ready to use	Julia Goedecke	25/08/2021 12:57
Calculating with vectors	Ready to use	Julia Goedecke	25/08/2021 12:57
Calculating with vectors - fixed size	Ready to use	Julia Goedecke	25/08/2021 12:57

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Question statement

Give any introductory information the student needs.

			Name	Type	Generated Value

a11	integer	-2
a12	integer	-2
a21	integer	-2
a22	integer	1
b11	integer	1
b12	integer	1
b21	integer	5
b22	integer	-1
c11	integer	-1
c12	integer	-1
c21	integer	3
c22	integer	0
matrixC	matrix	matrix([-1,-1],[3,0])

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Generated value: `integer`

-2

→ Used by:

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Variable testing condition
"Unnamed part" - prompt

Parts

Gap-fill
1. Gap Gap 0 Matrix entry
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Gap-fill

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Calculate $\left( \begin{array}{ccc} \var{a11} & \var{a12} \\ \var{a21} & \var{a22} \end{array} \right)+\left( \begin{array}{ccc} \var{b11} & \var{b12} \\ \var{b21} & \var{b22} \end{array} \right)=$ Gap 0.

Advice

To add matrices, we add each entry separately: entry 1,1 of the first matrix plus entry 1,1 of the second matrix goes into entry 1,1 of the sum, and so on.

$\begin{pmatrix}\simplify[]{{a11}+{b11}} & \var{a12}+\var{b12} \\ \var{a21} + \var{b21} & \var{a22}+\var{b22}\end{pmatrix}= \begin{pmatrix} \var{c11} & \var{c12} \\ \var{c21} & \var{c22}\end{pmatrix}$

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Part	Test	Passed?
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Gap-fill		Hasn't run yet
Matrix entry
Matrix entry		Hasn't run yet

This question is used in the following exams:

test by Julia Goedecke in Julia's workspace.
AA meeting example by James Brace in James's workspace.

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Taxonomy: mathcentre

Taxonomy: Kind of activity

Taxonomy: Context

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Checkpoint description

Julia Goedecke 4 years, 8 months ago

Julia Goedecke 4 years, 8 months ago

Julia Goedecke 4 years, 8 months ago

Julia Goedecke 4 years, 8 months ago

Julia Goedecke 4 years, 8 months ago

Error in variable testing condition

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Warning

Generated value: `integer`

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Gap-fill

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Adding 2x2 matrices

Metadata

Taxonomy: mathcentre

Taxonomy: Kind of activity

Taxonomy: Context

Contributors

Feedback

History

Comment

Checkpoint description

Julia Goedecke 4 years, 8 months ago

Julia Goedecke 4 years, 8 months ago

Julia Goedecke 4 years, 8 months ago

Julia Goedecke 4 years, 8 months ago

Julia Goedecke 4 years, 8 months ago

Error in variable testing condition

Error

Warning

Generated value: integer

Parts

Gap-fill

Generated value: `integer`