Numbas Users

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Welcome to the Numbas Users Group.

This is a discussion/information forum for anyone who is using Numbas in any capacity; using the questions and exams in the public database, creating their own questions and exams or just finding out about Numbas.

The e-Learning Unit at Newcastle University will provide support wherever possible (subject to resource availability) to any users who have genuine educational uses for Numbas

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David Wishart, Christian Lawson-Perfect3

Jul 12

Error creating custom part type

Thanks, I can create one now. I'm not sure if this is something that I've inadvertently

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Error creating custom part type

Thanks, I can create one now. I'm not sure if this is something that I've inadvertently

Jul 12

David Wishart, Christian Lawson-Perfect3

Jul 12

Thanks for that, it's for an online course which could include students from outside the UK so I

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Thanks for that, it's for an online course which could include students from outside the UK so I

Jul 12

Tom Salyers, … Peter Steele11

Jul 6

Reporting grades back to Blackboard Learn

Dear Johan, I have the same problem. Did you have any luck getting it working? I've now updated

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Reporting grades back to Blackboard Learn

Dear Johan, I have the same problem. Did you have any luck getting it working? I've now updated

Jul 6

Tom Salyers, … Christian Lawson-Perfect11

Jul 6

Unfamiliar error message

Yes, that would do it! I'll add a note to the documentation. On Tue, 6 Jul 2021 at 10:34, Tom

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Unfamiliar error message

Yes, that would do it! I'll add a note to the documentation. On Tue, 6 Jul 2021 at 10:34, Tom

Jul 6

Christian Lawson-Perfect

Jul 6

Numbas talks at EAMS 2021

I've just put a post on the blog collecting all the talks about Numbas at this year's EAMS

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Numbas talks at EAMS 2021

I've just put a post on the blog collecting all the talks about Numbas at this year's EAMS

Jul 6

Bob Morris, Timur Zaripov4

Jul 6

Selecting variables from list of possible numbers

Dear Bob, There isn't much to it in this case. I have attached screenshot implementing what you

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Selecting variables from list of possible numbers

Dear Bob, There isn't much to it in this case. I have attached screenshot implementing what you

Jul 6

Josh Oldridge, … Christian Lawson-Perfect6

Jun 30

Signs dependent on answers in 'Advice' section

Hi, it's working now! With normal () brackets around the {dzdy-dydz} etc it works. Many thanks

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Signs dependent on answers in 'Advice' section

Hi, it's working now! With normal () brackets around the {dzdy-dydz} etc it works. Many thanks

Jun 30

Tom Salyers, Christian Lawson-Perfect5

Jun 28

Content-Security-Policy header configuration

I just tried it in a new window....it's still happening, unfortunately. Same AJAX failure and

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Content-Security-Policy header configuration

I just tried it in a new window....it's still happening, unfortunately. Same AJAX failure and

Jun 28

Don Shearman, … Jim Pettigrew16

Jun 14

Review of question using Geogebra extension not working in Blackboard

Hi Christian, Thanks for this; it worked perfectly for one of Don Shearman's Geogebra extension

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Review of question using Geogebra extension not working in Blackboard

Hi Christian, Thanks for this; it worked perfectly for one of Don Shearman's Geogebra extension

Jun 14

David Wishart, Christian Lawson-Perfect3

Jun 9

Chemistry extension

Hello Christian, Thank-you for your (as always) quick answer. Short answer That works now thank-you.

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Chemistry extension

Hello Christian, Thank-you for your (as always) quick answer. Short answer That works now thank-you.

Jun 9

Don Shearman, Christian Lawson-Perfect3

Jun 8

Rational multiples of pi

Hi Christian Thanks for the advice. I've found that setting the answer to {x}*pi and leaving the

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Rational multiples of pi

Hi Christian Thanks for the advice. I've found that setting the answer to {x}*pi and leaving the

Jun 8

Chris Jobling, Christian Lawson-Perfect4

Jun 2

Issues with marking for Fourier transform examples

Can you give me a link to the question where this happens? On Tue, 1 Jun 2021 at 16:17, Chris Jobling

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Issues with marking for Fourier transform examples

Can you give me a link to the question where this happens? On Tue, 1 Jun 2021 at 16:17, Chris Jobling

Jun 2

Christian Lawson-Perfect, David Wishart5

Jun 1

Re: Cubed roots of negative numbers

That works as well now thank-you. I've noticed that this makes the behaviour of root(

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Re: Cubed roots of negative numbers

That works as well now thank-you. I've noticed that this makes the behaviour of root(

Jun 1

Jun 1

Cube roots of negative numbers

I'm getting strange results when trying to take the cube root of a negative numbers, test case

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Cube roots of negative numbers

I'm getting strange results when trying to take the cube root of a negative numbers, test case

Jun 1

Chris Jobling, Christian Lawson-Perfect2

Jun 1

Possible bug in accuracy test for mathematical expressions

Yep, that's a bug: it just wasn't loading the value of that field. I've fixed it. Thanks

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Possible bug in accuracy test for mathematical expressions

Yep, that's a bug: it just wasn't loading the value of that field. I've fixed it. Thanks

Jun 1

Chris Jobling, … Christian Lawson-Perfect5

Jun 1

Knockout error when reviewing marks in a question

This is now fixed! On Tue, 1 Jun 2021 at 08:17, Christian Lawson-Perfect <christianperfect@gmail.

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Knockout error when reviewing marks in a question

This is now fixed! On Tue, 1 Jun 2021 at 08:17, Christian Lawson-Perfect <christianperfect@gmail.

Jun 1

Christian Lawson-Perfect, Chris Jobling3

May 26

Re: Weird error with review inside LTI

Phew! The remark function was introduced in v2.9. On Wed, 26 May 2021 at 08:21, Chris Jobling <

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Re: Weird error with review inside LTI

Phew! The remark function was introduced in v2.9. On Wed, 26 May 2021 at 08:21, Chris Jobling <

May 26

Chris Jobling, Christian Lawson-Perfect3

May 23

Error marking matrix entry

I'm afraid that I replaced it with a gap fill question! I have another serious error that appears

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Error marking matrix entry

I'm afraid that I replaced it with a gap fill question! I have another serious error that appears

May 23

Don Shearman, Christian Lawson-Perfect4

May 20

Issue with conditional visibility

Thanks, that helped me see what was going on. I've made a change that I think fixes it. On Mon,

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Issue with conditional visibility

Thanks, that helped me see what was going on. I've made a change that I think fixes it. On Mon,

May 20

Jenny Hughes, … Johan Slabbert4

May 14

High stakes assessment

Hi there Jenny We have been using it for high stakes tests for the past 3 years (Previously built

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High stakes assessment

Hi there Jenny We have been using it for high stakes tests for the past 3 years (Previously built

May 14

William Haynes, Christian Lawson-Perfect3

May 4

Feature request: Comments for questions

I'll try that. I have been putting them after the statement and using conditional visibility to

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Feature request: Comments for questions

I'll try that. I have been putting them after the statement and using conditional visibility to

May 4

Chris Jobling, Christian Lawson-Perfect4

May 4

How to match functions in mathematical expressions

You can't use j as the imaginary unit at the moment. I have an open issue about this at https://

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How to match functions in mathematical expressions

You can't use j as the imaginary unit at the moment. I have an open issue about this at https://

May 4

Christian Lawson-Perfect

Apr 28

Open office hours each Thursday

We've decided to start running weekly “open office” hours each Thursday. You can make an

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Open office hours each Thursday

We've decided to start running weekly “open office” hours each Thursday. You can make an

Apr 28

Christian Lawson-Perfect

Apr 28

Numbas is 10 years old!

This week marks ten years since we first released Numbas as open-source software. I've written a

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Numbas is 10 years old!

This week marks ten years since we first released Numbas as open-source software. I've written a

Apr 28

Ulrich Goertz, Christian Lawson-Perfect4

Apr 26

Question: Polynomials extension, create "polynomial" from student's answer

Good point! I've added functions `string(p)` and `latex(p)` which produce plain string and LaTeX

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Question: Polynomials extension, create "polynomial" from student's answer

Good point! I've added functions `string(p)` and `latex(p)` which produce plain string and LaTeX

Apr 26

deevan shafait, Christian Lawson-Perfect2

Apr 26

Numbas LTI RedHat install setting SELinux to permissive mode

Hi Deevan, I honestly don't know! We don't use Red Hat or SELinux much here, so the published

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Numbas LTI RedHat install setting SELinux to permissive mode

Hi Deevan, I honestly don't know! We don't use Red Hat or SELinux much here, so the published

Apr 26

Christian Lawson-Perfect

Apr 13

Development update, March 2021

Hi all, I've published another development update on the Numbas blog, covering the last two

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Development update, March 2021

Hi all, I've published another development update on the Numbas blog, covering the last two

Apr 13

David Martin, … deevan shafait11

Apr 7

Setting up a server on RHEL 7

I can now see the Numbas LTI home page : "Numbas LTI Provider : Welcome to the Numbas LTI tool

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Setting up a server on RHEL 7

I can now see the Numbas LTI home page : "Numbas LTI Provider : Welcome to the Numbas LTI tool

Apr 7

Jacquelene Deng

Apr 3

Red error message

Hi, I'm getting a message of "there's no connection to the server" in red which

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Red error message

Hi, I'm getting a message of "there's no connection to the server" in red which

Apr 3

Christian Lawson-Perfect

Apr 1

A new "Getting Started" test

Hi all, At Newcastle we offer a "Getting Started" test to students, to show them how to use

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A new "Getting Started" test

Hi all, At Newcastle we offer a "Getting Started" test to students, to show them how to use

Apr 1

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