Room · wave 3

Number

The written language of calculation: the symbols and where they came from, the Greek letters and what each one usually stands for, angles and the unit circle, and logarithms, the trick that turned multiplication into addition and kept navigators, engineers and astronomers calculating for 350 years.

Mathematical symbols

Sixty signs with their meaning, their Unicode name and, where known, their first printed use.

Greek alphabet

All 24 letters, what each usually means in science, the look-alikes, and a drill.

Trigonometry

The unit circle you can turn, exact values, angle units, and a triangle solver that handles the ambiguous case.

Logarithms and the slide rule

Characteristic and mantissa, and a working slide rule with C, D, A, B, CI, K and L scales.