diff --git a/lib/msun/man/atan2.3 b/lib/msun/man/atan2.3 --- a/lib/msun/man/atan2.3 +++ b/lib/msun/man/atan2.3 @@ -150,14 +150,14 @@ (r,\(*h) coordinates that must satisfy x = .if n\ -r\(**cos theta +r*cos theta .if t\ -r\(**cos\(*h +r*cos\(*h and y = .if n\ -r\(**sin theta. +r*sin theta. .if t\ -r\(**sin\(*h. +r*sin\(*h. These equations are satisfied when (x=0,y=0) is mapped to .if n \ @@ -168,7 +168,7 @@ should be computed thus: .Bd -unfilled -offset indent .if n \{\ -r := hypot(x,y); ... := sqrt(x\(**x+y\(**y) +r := hypot(x,y); ... := sqrt(x*x+y*y) theta := atan2(y,x). .\} .if t \{\ @@ -194,9 +194,9 @@ In general the formulas above are equivalent to these: .Bd -unfilled -offset indent .if n \ -r := sqrt(x\(**x+y\(**y); if r = 0 then x := copysign(1,x); +r := sqrt(x*x+y*y); if r = 0 then x := copysign(1,x); .if t \ -r := \(sr(x\(**x+y\(**y);\0\0if r = 0 then x := copysign(1,x); +r := \(sr(x*x+y*y);\0\0if r = 0 then x := copysign(1,x); .Ed .El .Sh SEE ALSO