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 Chain rule - trig and quadratic 5 years, 1 month ago

Saved a checkpoint:

I've replaced $dx$ with $\mathrm{d}x$.

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Christian Lawson-Perfect on Chain rule - trig and quadratic 5 years, 1 month ago

Gave some feedback: Ready to use

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Christian Lawson-Perfect on Quotient rule - differentiate quotient of trig functions 5 years, 1 month ago

Gave some feedback: Ready to use

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Christian Lawson-Perfect on Quotient rule - differentiate quotient of trig functions 5 years, 1 month ago

Saved a checkpoint:

I've replaced $dx$ with $\mathrm{d}x$, and added some spacing between the lines in the advice.

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Christian Lawson-Perfect on Chain rule - product of two functions 5 years, 1 month ago

Saved a checkpoint:

I've replaced $dx$ with $\mathrm{d}x$ and turned off "allow unknown function names".

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Christian Lawson-Perfect on Chain rule - square root of polynomial 5 years, 1 month ago

Saved a checkpoint:

I've replaced $dx$ with $\mathrm{d}x$ and turned off "allow unknown function names".

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Christian Lawson-Perfect on Chain rule - square root of polynomial 5 years, 1 month ago

Gave some feedback: Ready to use

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Christian Lawson-Perfect on Chain rule - binomial 5 years, 1 month ago

Gave some feedback: Ready to use

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Christian Lawson-Perfect on Chain rule - binomial 5 years, 1 month ago

Saved a checkpoint:

I've replaced $dx$ with $\mathrm{d}x$ and turned off "allow unknown function names" so $x(x+1)$ is interpreted as a multiplication.