Function File: unitsratio (to, from) ¶

Return ratio for conversion between units.

Returns the conversion ratio between two units, to and from, so that:

unitsratio ("meter", "centimeter")
⇒
100

unitsratio ("inch", "foot")
⇒
12

This allows for easy conversion between units, for example:

unitsratio ("mile", "km") * 156
⇒
96.93391

For conversion between angle units, "degrees" and "radians" are supported. For conversion between length units, supports units defined in validateLengthUnit.

See also: units, validateLengthUnit.

Package: mapping