Maths loves symbols. Everyone loves emoji. It’s 2017 and time we brought the two together. To get you started, here are our top ten emoji for use in mathematics!
10.
📐
Don’t leave home without one: it’s the nifty 45° set square. What better reminder is there that
$$\sin\left(\frac{\pi}{4}\right) = \frac{\sqrt{2}}{2}, \qquad \cos\left(\frac{\pi}{4}\right) = \frac{\sqrt{2}}{2}, \qquad \tan\left(\frac{\pi}{4}\right) = 1$$ 📐
9.
🏹
Perfect for popping over a letter to make it a vector, it’s the bow and arrow:
At 10, and dangerously close to having a “(sic)” added after it: the center.
Beating its American cover version to number 9 this week: Stuck in the Centre with You by Stealers Wheel.
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At 10, it’s perfect for colouring in sideburns: brown chalk.
A re-entry at number 9, it’s yellow chalk by UCL’s second most successful band, Coldplay.
At 10, it’s what we’ve all been searching for: the 
Down two places to 9 this week, it’s the 
A new entry at 10, everyone’s least favourite axis… y!
At 9, allegedly resembling the British Rail logo… the not equals symbol!
