Re: [Jgeneral] significant digits

[John Randall]

John Randall meant:

angle=:12&.o.
atan=:_3&o.@:%~
atan2=:angle@:j.
    (?0) (atan-atan2) (?0)
_1.11022e_16
    1 (atan-atan2) _1
0
   _1 (atan-atan2) 1
_3.14159


Best wishes,

John

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