# 5

Figure 3: Exit basins when the gap width gradually increases (top to bottom: $\ell = 0.07$, $0.09$, $0.11$, and $0.13$) and the plane of initial conditions $(x_0,\theta_0)$ in the left-hand column is $[-0.1,0.1] \times [-10°,10°]$.

Matthew is a postdoctoral researcher at the University of Cambridge. He hasn’t had time to play Klax since the noughties, but he’s pretty sure that Coke is it!

• ### My favourite LaTeX package

The Chalkdust editors share some of their favourites
• ### On the cover: cellular automata

Discover the meaning of the coloured squares on the cover of issue 13
• ### Oπnions: Should I share my code?

Scroggs debates whether sharing truly is caring
• ### Crossnumber winners, issue 11

Did you solve it?
• ### Chalkdust issue 11 puzzle hunt #1

Matthew Scroggs sets the first puzzle. Can you solve it?
• ### Crossnumber winners, issue 10

Did you solve it?