Find matrix from entry formula

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Ready to use

2 years, 10 months ago

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Julia Goedecke 2 years, 10 months ago

Published this.

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Julia Goedecke 2 years, 10 months ago

Gave some feedback: Ready to use

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Julia Goedecke 3 years ago

Created this as a copy of Find matrix from entry formula ( WBQ 1.23 randomized size and formula).

Name	Status	Author	Last Modified
Find matrix from entry formula (same as WBQ 1.23)	Ready to use	Julia Goedecke	25/08/2021 12:57
Find matrix from entry formula ( WBQ 1.23 randomized size and formula)	Ready to use	Julia Goedecke	25/08/2021 12:57
copy of Find matrix from entry formula ( WBQ 1.23 randomized size and formula)	Ready to use	Julia Goedecke	25/08/2021 12:57
Find matrix from entry formula	Ready to use	Julia Goedecke	25/04/2022 08:58

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Question statement

Find the $\var{m}\times \var{n}$ matrix $A=(a_{ij})_{\var{m}\times \var{n}}$ whose entries satisfy the stated condition:

Give any introductory information the student needs.

			Name	Type	Generated Value

m	integer	2
n	integer	3
rawA1		Error evaluating variable rawa1: Expression can't be evaluated -- missing an operator.
A1		Error evaluating variable a1: Variable `rawA1` is not defined.
rawgeneralA	list	List of 6 items
generalA	string	\begin{pmatrix}a_{11}&a_{12}&a
symbols	list	Nested 2×3 list
rawunresolvedA1	list	List of 6 items
unresolvedA1	string	\begin{pmatrix}2-1&2-2&2-3\\3-
operation	string	-
latexoperation	string	-
a11	string	2-1
a12	string	2-2
term1test	string	{(k+1)}
d1	integer	2
d2	integer	1

Automatically regenerate variables?

Name

Data type

Value

xxxxxxxxxx
 
random(2..4)

JME function reference

Description

number of rows

Describe what this variable represents, and list any assumptions made about its value.

Can an exam override the value of this variable?

Generated value: `integer`

→ Used by:

A1
rawA1
rawgeneralA
rawunresolvedA1
symbols

This variable doesn't seem to be used anywhere.

Parts

Gap-fill
1. Gap Matrix entry
  Add

Gap-fill

Ask the student a question, and give any hints about how they should answer this part.

$a_{ij}=\var{latex(term('i',d1)+latexoperation+term('j',d2))}$ . Then $A=$ Unnamed gap

Advice

The entry $a_{ij}$ is the entry in row $i$ and column $j$ . So when we know the row and column, we can work out the entry from the formula.

$a_{ij}=\var{latex(term('i',d1)+latexoperation+term('j',d2))}$ , so $a_{11}=\var{a11}=\var{A1[0][0]}$ and $a_{12}=\var{a12}=\var{A1[0][1]}$ and so on.

$A = \var{generalA} =\var{unresolvedA1}= \var{A1}$

Give a worked solution to the whole question.

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There was an error which means the tests can't run:

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

This question is used in the following exam:

Maths Test Exam by Alex Bowkley in Alex's workspace.

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Taxonomy: mathcentre

Taxonomy: Kind of activity

Taxonomy: Context

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Checkpoint description

Julia Goedecke 2 years, 10 months ago

Julia Goedecke 2 years, 10 months ago

Julia Goedecke 3 years ago

Error in variable testing condition

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Generated value: `integer`

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Gap-fill

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Find matrix from entry formula

Metadata

Taxonomy: mathcentre

Taxonomy: Kind of activity

Taxonomy: Context

Contributors

Feedback

History

Comment

Checkpoint description

Julia Goedecke 2 years, 10 months ago

Julia Goedecke 2 years, 10 months ago

Julia Goedecke 3 years ago

Error in variable testing condition

Error

Warning

Generated value: integer

Parts

Gap-fill

Generated value: `integer`