note that trig functions use radians, include constant 'pi'

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note that trig functions use radians, include constant 'pi' #104

Closed jack-sprat closed 6 months ago

jack-sprat commented 2 years ago

although use of radians is described elsewhere, it's handy to note it in the list of functions, and since conversion from degrees to radians uses pi, it also helps to have a reminder about the constant as well

lordofbikes commented 2 years ago

Many thanks for pointing this out. Please see my comments in #105, a proposal for a more complete solution.

lordofbikes commented 6 months ago

many thanks :+1: