## Colin Beveridge

Maths, clearly

When I worked at a printing press one summer as a student, the staff spent several worker-hours every week following a complicated protocol to work out ink prices on a calculator. It was slow, tedious and error-prone, and I hated it, until the lunchtime I snuck on to the boss’s computer and put an Excel spreadsheet together to do the heavy lifting. After I was acquitted of witchcraft, the whole office adopted the solution; in retrospect, that spreadsheet probably saved the firm an order of magnitude more than what they paid me all summer.

I’m a freelance mathematician, which means I solve the kind of annoying problem you’ve probably been putting off.

For example, I’ve done work on:

• Developing Python code to guide an autonomous underwater vehicle navigate into a dock
• Calculating the volume of building materials in a development
• Finding an Excel formula for the ideal sales price of goods to produce a given profit
• Finding angles to help in plotting ellipses
• Designing a Geogebra demonstration of a cool folding door