Member of the e-learning unit in Newcastle University's School of Mathematics and Statistics.

Lead developer of Numbas.

I'm happy to answer any questions - email me.

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Christian Lawson-Perfect on Truth tables 4 (v2) 6 years, 7 months ago

Saved a checkpoint:

Can't convert grids of booleans to matrices automatically any more, so I've added a function 'bool_matrix' to do that.

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Christian Lawson-Perfect on Transportation problem - stepping stones 6 years, 7 months ago

Saved a checkpoint:

Replaced javascript in part b with a custom marking algorithm.

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Christian Lawson-Perfect on Simplex method - 4 or 5 random inequalities 6 years, 7 months ago

Saved a checkpoint:

Replaced javascript in part a with a custom marking algorithm

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Christian Lawson-Perfect on Simplex algorithm - bus company 6 years, 7 months ago

Saved a checkpoint:

Replaced javascript for part h with a custom marking algorithm

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Christian Lawson-Perfect on Hungarian algorithm 6 years, 7 months ago

Saved a checkpoint:

Replaced javascript in part a with a custom marking algorithm

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Christian Lawson-Perfect on Generator matrix for Simplex code 6 years, 7 months ago

Saved a checkpoint:

Replaced javascript in part b with a custom marking algorithm.

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Christian Lawson-Perfect on Finding bases for the null space and row space of a matrix 6 years, 7 months ago

Saved a checkpoint:

Need to replace the javascript in part c with a custom marking algorithm.

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Christian Lawson-Perfect on Finding bases for the null space and row space of a matrix 6 years, 7 months ago

Gave some feedback: Doesn't work

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Christian Lawson-Perfect on Find n such that $\sigma(n)$ is the given number 6 years, 7 months ago

Saved a checkpoint:

Part b seemed to be just some debugging info, so I've removed it

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Christian Lawson-Perfect on Find n such that $\sigma(n)$ is the given number 6 years, 7 months ago

Gave some feedback: Needs to be tested