Docs / Math, units & currency

Math, units & currency

Calculate in plain prose, and convert money and measures inline.

A math region is a calculator that reads prose. Write numbers the way you’d say them — names, units and currencies included — and the answers appear inline.

Arithmetic

Standard arithmetic works as you’d expect, including parentheses, powers and functions:

team   : 7
pizzas : ceil(team / 2)
slices : pizzas * 8
slices / team = 4.57

2 ^ 16 = 65,536

Percentages

Percentages are written the natural way:

dinner : 86
dinner + 18% = 101.48
240 - 20% = 192
15% of 5400 = 810

Units

Convert between physical units with to. Notulee carries the dimensions through the maths, so it can catch nonsense conversions:

2 km to mi   = 1.24 mi
180 C to F   = 356 F
1500 g to kg = 1.5 kg

Currency

Currencies convert the same way. Rates are fetched once and cached locally, so conversions keep working offline:

4.50 USD to GBP = 3.56 GBP

You can also pin your own rate for any currency code — useful for a fixed budget rate, or when you’d rather not fetch live rates at all.

Currency is the only feature that ever touches the network, and it never sends your note content. See Privacy.