Difference between revisions of "ApCoCoA-1:Fn.ReduceModPi"
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| − | <see>Fn.SetAccuracy</see> | + | <see>ApCoCoA-1:Fn.SetAccuracy|Fn.SetAccuracy</see> |
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<key>elemfns.ReduceModPi</key> | <key>elemfns.ReduceModPi</key> | ||
Latest revision as of 10:04, 7 October 2020
| This article is about a function from ApCoCoA-1. |
Fn.ReduceModPi
Reduces a given value modulo 2*pi to the interval between -pi and pi.
Syntax
Fn.ReduceModPi(Val:RAT,Acc:INT):RAT
Description
This function reduces Val modulo 2*pi to the interval
(-pi, pi) thereby guaranteeing correctness of the result
up to the desired accuracy Acc.
@param Val The value to be reduced.
@param Acc The desired accuracy.
@return Returns a pair [R, Q] such that Val = Q*2*pi + R where Q is an integer and R is between -pi and pi.
Example
Dec(Fn.ReduceModPi(10^20, 10), 20) ; [-0.7013521577, 15915494309189533577] -------------------------------
