Numbas demo: matrix entry part type

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Christian Lawson-Perfect

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4 years, 8 months ago

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Christian Lawson-Perfect 4 years, 8 months ago

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Christian Lawson-Perfect 4 years, 8 months ago

Gave some feedback: Ready to use

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Christian Lawson-Perfect 4 years, 8 months ago

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Question statement

The matrix entry part type asks the student to write a matrix - a two-dimensional array of numbers. The student's answer is correct if their matrix is the expected size, and each cell is equal to the corresponding cell in the expected answer. You can award partial marks for each correct cell.

See this question on the public editor.

Give any introductory information the student needs.

			Name	Type	Generated Value

			random_matrix	matrix	Matrix of size 2×3
			fraction_matrix	matrix	Matrix of size 2×2

Automatically regenerate variables?

Name

Data type

Value

xxxxxxxxxx
 
matrix(
  repeat( repeat(random(1..5#0),3), 2)
)

JME function reference

Description

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

Can an exam override the value of this variable?

Generated value: `matrix`

matrix([1.7600051008,3.2930445841,4.3294808705],[4.2141125396,2.345230726,2.1343545079])

This variable doesn't seem to be used anywhere.

Parts

Pre-filled cells Matrix entry
Set the initial size Matrix entry
Fixed size Matrix entry
Precision restriction Matrix entry
Award marks for each correct cell Matrix entry
Allow fractions Matrix entry
Pre-filled cells Matrix entry

Matrix entry

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

Write a $3 \times 3$ identity matrix, $\var{id(3)}$ .

Marks

Correct answer

xxxxxxxxxx
 
id(3)

Show correct answer on reveal?

Show score feedback icon?

Advanced settings

Number of rows

Number of columns

Allow student to change size of matrix?

Minimum number of rows

Maximum number of rows

(No limit)

Minimum number of columns

Maximum number of columns

(No limit)

Margin of error allowed in each cell

Gain marks for each correct cell?

Precision restriction

Allow the student to enter fractions?

Display numbers in the correct answer as fractions?

Pre-filled cells

​x
 
​

Advice

Give a worked solution to the whole question.

Use this tab to check that this question works as expected.

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

Part	Test	Passed?
Matrix entry
Matrix entry		Hasn't run yet
Matrix entry
Matrix entry		Hasn't run yet
Matrix entry
Matrix entry		Hasn't run yet
Matrix entry
Matrix entry		Hasn't run yet
Matrix entry
Matrix entry		Hasn't run yet
Matrix entry
Matrix entry		Hasn't run yet
Matrix entry
Matrix entry		Hasn't run yet

This question is used in the following exams:

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Metadata

Taxonomy: mathcentre

Taxonomy: Kind of activity

Taxonomy: Context

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Checkpoint description

Christian Lawson-Perfect 4 years, 8 months ago

Christian Lawson-Perfect 4 years, 8 months ago

Christian Lawson-Perfect 4 years, 8 months ago

Error in variable testing condition

Error

Warning

Generated value: `matrix`

Parts

Matrix entry

Advanced settings

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Numbas demo: matrix entry part type

Metadata

Taxonomy: mathcentre

Taxonomy: Kind of activity

Taxonomy: Context

Contributors

Feedback

History

Comment

Checkpoint description

Christian Lawson-Perfect 4 years, 8 months ago

Christian Lawson-Perfect 4 years, 8 months ago

Christian Lawson-Perfect 4 years, 8 months ago

Error in variable testing condition

Error

Warning

Generated value: matrix

Parts

Matrix entry

Advanced settings

Generated value: `matrix`