The angular setup for a point on the rim. To keep the parameterisation the same as the last case, the angles of incidence and reflection have been defined differently
More from Chalkdust
What’s hot and what’s not, Issue 19
Fashion is fleeting, Chalkdust regulars are not.
Mathematics and pregnancy
Eleanor Doman and Qi Zhou swap percentages for placenta-ges
Roots: Blaise Pascal
Blaise Pascal was driven to begin the mechanisation of mathematics by his father's struggles with an accounts book in 17th century France.
Creating hot ice
We created hot ice from scratch, a solution that remains liquid even below its freezing point!
Curiouser and curiouser!
Some surprising mathematical facts
Find your perfect partner
Find your perfect partner with this wonderful tree diagram!