issue 13 for website

Jamie is a second year mathematics student at Christ’s College Cambridge. His main interests are in group theory, number theory, and a touch of algebraic geometry.

Dear Dirichlet, Issue 19
Game shows, flight and social media bots are among the problems solved in this issue's Dear Dirichlet agony aunt column
Dear Dirichlet, Issue 14
Football, telly and shape-shifting houses find their way into the prof's postbox this issue.
Significant figures: John Conway
The story of an unforgettable mathematician.
What’s hot and what’s not, Issue 09
Fashion is fleeting, Chalkdust regulars are not.
Complex numbers and algebra
Exploring the beauty of complex numbers, their origins and why they are important
Fractional calculus: the calculus of witchcraft and wizardry
How can we differentiate a function 9¾ times?

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