The value of pi
, Archimedes’ constant (π).
PI: number(_?) = 3.14159265358979323846264338327950288_?
PI
is a number and is technically a ratio, so you might expect it to have type number(_)
.
However, PI
is nearly always used for converting between different units - usually degrees to or
from radians. Therefore, PI
is treated a bit specially by KCL and always has unknown units. This
means that if you use PI
, you will need to give KCL some extra information about the units of numbers.
Usually you should use type ascription on the result of calculations, e.g., (2 * PI): number(rad)
.
You might prefer to use units::toRadians
or units::toDegrees
to convert between angles with
different units.
Examples
circumference = 70
exampleSketch = startSketchOn(XZ)
|> circle(center = [0, 0], radius = (circumference / (2 * PI)): number(mm))
example = extrude(exampleSketch, length = 5)