Christian Lawson-Perfect
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.
Christian's activity
Christian Lawson-Perfect published Basic real life graph 3 years, 4 months ago
Christian Lawson-Perfect published Very small answer for a number entry part 3 years, 4 months ago
Christian Lawson-Perfect created Very small answer for a number entry part 3 years, 4 months ago
Christian Lawson-Perfect on Distributions 3 years, 6 months ago
Saved a checkpoint:
Since you define the variables n, mu and sigma in R, the student can write rnorm(n,mu,sigma) and it's marked correct.
I think you should either not pass them through as variables, but sub into the preamble, or pass them through under hard-to-guess names.
The expected answer should certainly use the literal numbers, rather than the names.
Christian Lawson-Perfect on Make a plot 3 years, 6 months ago
Saved a checkpoint:
Removed the JS preamble to load svglite: it looks like webR can do that on its own now.
Christian Lawson-Perfect on Construct the region satisfied by three inequalities 3 years, 7 months ago
Saved a checkpoint:
Fixed the JS functions to work with the updated JSXGraph extension.
Christian Lawson-Perfect published Immediately show a plot of the student's function 3 years, 7 months ago
Christian Lawson-Perfect created Immediately show a plot of the student's function 3 years, 7 months ago
Christian Lawson-Perfect published Numbas demo: Randomisation 3 years, 7 months ago
Christian Lawson-Perfect on Numbas demo: Randomisation 3 years, 7 months ago
Gave some feedback: Needs to be tested