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6.1.7 Package elemfns
The following are commands and functions within the package elemfns:
Fn.ArcCos Returns the arccosine of a given value.
Fn.ArcCosN Returns the arccosine of a given value with a given accuracy.
Fn.ArcSin Returns the arcsine of a given value.
Fn.ArcSinN Returns the arcsine of a given value with a given accuracy.
Fn.ArcTan Returns the arctangent of a given value.
Fn.ArcTanN Returns the arctangent of a given value with a given accuracy.
Fn.Cos Returns the cosine of a given value.
Fn.CosN Returns the cosine of a given value with a given accuracy.
Fn.E Returns Euler's number e rounded to the current global accuracy.
Fn.EN Returns Eulers' number e rounded to accuracy Acc.
Fn.Exp Returns the exponential of a given value.
Fn.ExpN Returns the exponential of a given value with a given accuracy.
Fn.GetAccuracy Get the currently used accuracy.
Fn.Ln Returns the natural logarithm of a given value.
Fn.Ln2 Returns the natural logarithm of 2 rounded to the current global accuracy.
Fn.Ln2N Returns the natural logarithm of 2 rounded to accuracy Acc.
Fn.LnN Returns the natural logarithm of a given value with a given accuracy.
Fn.Log Returns the logarithm to a given base.
Fn.LogN Returns the logarithm to a given base with a given accuracy.
Fn.Pi Returns the constant pi rounded to the current global accuracy.
Fn.PiN Returns the constant pi rounded to accuracy N.
Fn.Pow Returns Base to the power of Exponent.
Fn.PowN Returns Base to the power of Exponent with a given accuracy.
Fn.ReduceModLn2 Reduces a given value modulo the natural logarithm of 2.
Fn.ReduceModPi Reduces a given value modulo 2*pi to the interval between -pi and pi.
Fn.Root Returns the N-th root of a given value.
Fn.RootN Returns the N-th root of a given value with a given accuracy.
Fn.Round Round a number.
Fn.RoundN Round a number to a desired accuracy.
Fn.SetAccuracy Set the default accuracy.
Fn.Sin Returns the sine of a given value.
Fn.SinN Returns the sine of a given value with a given accuracy.
Fn.Sqrt Returns the square root of a given value.
Fn.SqrtN Returns the square root of a give value with a given accuracy.
Fn.Tan Returns the tangent of a given value.
Fn.TanN Returns the tangent of a given value with a given accuracy.




For details look up each item by name. Online, try ?ItemName or H.Syntax("ItemName").