(* 2 pi) as a double-float.
(* 2 pi)
graphics-ports
The constant 2pi is the result of (* 2 cl:pi). It is a cl:double-float.
2pi
(* 2 cl:pi)
fpipi-by-2
CAPI User Guide and Reference Manual (Unix version) - 01 Dec 2021 19:33:02