A Second Cheat Sheet: the Sine Rule and the Cosine Rule

More adventures in MST121: Using Mathematics. B3: Modelling with Vectors took an unexpected turn into matters of triangle geometry - and not the more beginner-friendly right-angled variety either - which left me getting to grips with the Sine Rule and the Cosine Rule.

Much like my experiences with Sigma Notation, the principles are straightforward, but I kept failing to spot which equations to apply.

My First Contribution to Fifteensquared

I'm pleased to mention that earlier on today, I posted my first contribution to Fifteensquared.net. The post in question is Independent 6,912 by Dac.

For the uninitiated, Fifteensquared is kind of like a blog for cryptic crossword enthusiasts. Several invited bloggers post solutions and explanations for some of the day's main crosswords, and then we all have a bit of a natter about it.

Copyright/License Comment Blocks Considered Harmful

Rant alert. You know what really grinds my gears?

It's those epically long license/copyright notice comment blocks with which some developers, particularly those behind open source PHP projects, insist on prepending source code files.

You've all seen this kind of thing. I'm using Wall4PHP to illustrate my point, but they're by no means the only offenders.