function:ATAN
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The ATAN function returns the arctangent of its argument.
If ATAN(x)=y, then TAN(y)=x.
function/ATAN.1436776992.txt.gz · Last modified: by peternlewis
The ATAN function returns the arctangent of its argument.
If ATAN(x)=y, then TAN(y)=x.