A PureScript library to represent and work with physical quantities and units. Note that this library focuses on a representation at run time as opposed to other projects which use the type system to encode physical units at compile time.
> showResult $ 2.0 .* minute ⊕ 30.0 .* second "2.5min" > showResult $ (85.0 .* mile ./ hour) `convertTo` (meter ./ second) "37.9984m/s" > showResult $ (10.0 .* meter ./ second) `convertTo` (kilo meter ./ hour) "36km/h" > log $ showResult $ (10.0 .* joule) `convertTo` watt Cannot unify unit 'J' (SI: 'm²·g/s²') with unit 'W' (SI: 'm²·g/s³') > showResult $ sin (90.0 .* degree) "1"
Calculate the time it takes to download a 2.7GB file on a 6Mbit/s connection:
> let filesize = 2.7 .* giga byte > let speed = 6.0 .* mega bit ./ second > showResult $ (filesize ⊘ speed) `convertTo` minute "60min"
Calculate the oscillation period T = 2π sqrt(L/g) of a pendulum with length L = 20cm:
> let g = 9.81 .* meter ./ second .^ 2.0 > let length = 20.0 .* centi meter > let period = scalar 2.0 ⊗ pi ⊗ sqrt (length ⊘ g) > prettyPrint (fullSimplify period) "0.89714s"
bower install purescript-quantities npm install decimal.js