Questions on HCFs and LCMs
Working function for Q on integer solutions to linear Diophantine equations
Finished question for integer solutions of linear equations.
initial draft of question for distance between two points
Fixed a bug where a surd b*sqrt(c)/d would show sqrt(1) is c=1
Added new question for distance between two integer points in Z^2 or Q^2
Started question on circumcentre of three points (but not getting correct numerical answers yet).