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### Feedback

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

### History

#### Checkpoint description

Describe what's changed since the last checkpoint.

#### Julia Goedecke3 weeks, 1 day ago

Gave some feedback: Ready to use

#### Julia Goedecke3 weeks, 1 day ago

Saved a checkpoint:

Now cleaned up  marking algorithms, and added the feature that the system at the beginning can't be submitted if some entries are invalid or empty.

#### Julia Goedecke3 weeks, 1 day ago

Saved a checkpoint:

Checkpoint before cleaning up the custom marking algorithms, to make it clearer what i have changed.

#### Julia Goedecke4 weeks, 1 day ago

Saved a checkpoint:

Changed the coding of "swap rows" so that if no entry is given, it takes the original row again in that place.

#### Julia Goedecke4 weeks, 1 day ago

Used new "bareMatrices" flag to display the augmented systems as they should be.

#### Julia Goedecke4 weeks, 1 day ago

Gave some feedback: Needs to be tested

#### Julia Goedecke4 weeks, 1 day ago

Changed visibility of options so that only options that are possible within given matrix size are visible. Made it possible to leave blanks in the multiplication of rows if they are to stay the same.

#### andrew tonks1 month ago

Issue happens with "real life" examples but the following contrived one is the smallest I can find

https://numbas.mathcentre.ac.uk/media/question-resources/bug.png

#### Julia Goedecke1 month ago

The "some problems" is that when you calculate with 1/3s, you sometimes get $0\pi$ rather than $0$.

#### Julia Goedecke1 month ago

Gave some feedback: Has some problems

Published this.

#### Julia Goedecke1 month ago

Gave some feedback: Ready to use

#### Julia Goedecke1 month ago

Created this.
Gaussian elimination calculator Ready to use Julia Goedecke 22/07/2020 13:19
Gaussian elimination no scaffold draft Julia Goedecke 22/07/2020 18:11
Tiny Gaussian elimination bug Needs to be tested andrew tonks 12/07/2020 18:44
andrew's copy of Tiny Gaussian elimination bug draft andrew tonks 12/07/2020 18:44
andrew's copy of andrew's copy of Tiny Gaussian elimination bug draft andrew tonks 12/07/2020 18:44
no gapfill required Tiny Gaussian elimination bug draft andrew tonks 13/07/2020 12:11
andrew's copy of no gapfill required Tiny Gaussian elimination bug draft andrew tonks 13/07/2020 12:29
2 line bug draft andrew tonks 15/07/2020 10:46
Gauss Jordan algorithm no scaffold - strict draft Julia Goedecke 13/07/2020 15:20
vijay's copy of Gaussian elimination calculator draft vijay teeluck 22/07/2020 11:02
Joshua's copy of Gaussian elimination calculator draft Joshua Capel 30/07/2020 08:12

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