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 on Find determinant of a 3x3 matrix with a free variable by row reduction 6 years, 7 months ago
Saved a checkpoint:
Replaced javascript with custom marking algorithms.
Christian Lawson-Perfect on Factorise polynomials over Z_5 6 years, 7 months ago
Saved a checkpoint:
Fixed the pattern-matching code for Numbas v4. Could all do with being a custom marking algorithm, though.
Christian Lawson-Perfect on Factorise four numbers 6 years, 7 months ago
Saved a checkpoint:
There's a load of javascript that should be replaced with a custom marking algorithm, or a pattern restriction.
Christian Lawson-Perfect on Factorise four numbers 6 years, 7 months ago
Gave some feedback: Doesn't work
Christian Lawson-Perfect on Duality of linear programming problems (2 variables) 6 years, 7 months ago
Saved a checkpoint:
"Error in part Part a gap 2 custom script constructor: this.display is undefined"
Christian Lawson-Perfect on Duality of linear programming problems (2 variables) 6 years, 7 months ago
Gave some feedback: Doesn't work
Christian Lawson-Perfect on Combining algebraic fractions 3.0 6 years, 7 months ago
Saved a checkpoint:
Replaced string restrictions with pattern restriction
Christian Lawson-Perfect on Classify singular points of a second order ODE 6 years, 7 months ago
Saved a checkpoint:
Has a custom marking script in JS which doesn't work. Needs to be replaced with a marking algorithm in JME.
Christian Lawson-Perfect on Classify singular points of a second order ODE 6 years, 7 months ago
Gave some feedback: Doesn't work
Christian Lawson-Perfect on Arithmetics of complex numbers IV 6 years, 7 months ago
Saved a checkpoint:
Replaced string restrictions with pattern restrictions