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 commented on Solve linear equations in the rationals and Z_n 3 days, 20 hours ago

The describegcd function needs to be rewritten to work with the new THTML type.

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Christian Lawson-Perfect on Solve linear equations in the rationals and Z_n 3 days, 20 hours ago

Gave some feedback: Doesn't work

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Christian Lawson-Perfect on Abstract algebra 3 days, 20 hours ago

Gave some feedback: Doesn't work

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Christian Lawson-Perfect on Identify correct parametric representation of a curve 3 days, 21 hours ago

Saved a checkpoint:

I've made the 'show' function work but the curve images are missing.

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Christian Lawson-Perfect on Transportation problems 3 days, 21 hours ago

Gave some feedback: Doesn't work

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Christian Lawson-Perfect on Statistics for experimental psychology 3 days, 21 hours ago

Gave some feedback: Doesn't work

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Christian Lawson-Perfect on Simplex method 3 days, 21 hours ago

Gave some feedback: Doesn't work

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Christian Lawson-Perfect on Number theory and cryptography 3 days, 21 hours ago

Gave some feedback: Doesn't work

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Christian Lawson-Perfect on Mathematics and statistics for bioinformatics 3 days, 21 hours ago

Gave some feedback: Doesn't work

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Christian Lawson-Perfect on Linear algebra 3 days, 21 hours ago

Gave some feedback: Doesn't work