ArcTan(x,y)?
04-05-2017, 12:07 PM
Post: #1
 toml_12953 Senior Member Posts: 1,948 Joined: Dec 2013
ArcTan(x,y)?
Is there a single function on the Prime to compute ArcTan(x,y)? I know the function below returns the correct values for the different quadrants but I'd like to use a built-in function if possible. I cant find anything on it in the manual.

Tom L

PHP Code:
arctanxy(x, y)begin  local a;  if x == 0 then    if y == 0 then      a := 0;    else      a := sign(y) * pi / 2    end;  else    a := atan(y / x);    if x < 0 then      if y < 0 then        a := a - pi;      else        a := a + pi;      end;    end;  end;  return a;end;

Tom L
Cui bono?
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 Messages In This Thread ArcTan(x,y)? - toml_12953 - 04-05-2017 12:07 PM RE: ArcTan(x,y)? - Joe Horn - 04-05-2017, 12:20 PM RE: ArcTan(x,y)? - toml_12953 - 04-05-2017, 12:26 PM RE: ArcTan(x,y)? - StephenG1CMZ - 04-05-2017, 03:00 PM RE: ArcTan(x,y)? - toml_12953 - 04-05-2017, 03:39 PM RE: ArcTan(x,y)? - StephenG1CMZ - 04-05-2017, 06:22 PM RE: ArcTan(x,y)? - KeithB - 04-05-2017, 07:28 PM RE: ArcTan(x,y)? - StephenG1CMZ - 04-05-2017, 07:47 PM RE: ArcTan(x,y)? - KeithB - 04-05-2017, 10:47 PM RE: ArcTan(x,y)? - DrD - 04-06-2017, 10:27 AM RE: ArcTan(x,y)? - StephenG1CMZ - 04-06-2017, 03:22 PM RE: ArcTan(x,y)? - KeithB - 04-05-2017, 07:33 PM RE: ArcTan(x,y)? - StephenG1CMZ - 04-05-2017, 07:53 PM RE: ArcTan(x,y)? - KeithB - 04-05-2017, 08:10 PM RE: ArcTan(x,y)? - StephenG1CMZ - 04-05-2017, 09:17 PM RE: ArcTan(x,y)? - jte - 04-05-2017, 09:08 PM RE: ArcTan(x,y)? - KeithB - 04-05-2017, 09:42 PM RE: ArcTan(x,y)? - StephenG1CMZ - 04-05-2017, 10:38 PM RE: ArcTan(x,y)? - KeithB - 04-05-2017, 10:41 PM RE: ArcTan(x,y)? - StephenG1CMZ - 04-06-2017, 03:30 PM RE: ArcTan(x,y)? - Han - 04-06-2017, 03:53 PM RE: ArcTan(x,y)? - JMB - 04-09-2017, 09:50 AM RE: ArcTan(x,y)? - StephenG1CMZ - 04-09-2017, 03:47 PM RE: ArcTan(x,y)? - JMB - 04-09-2017, 08:00 PM RE: ArcTan(x,y)? - KeithB - 04-06-2017, 02:38 PM RE: ArcTan(x,y)? - StephenG1CMZ - 04-09-2017, 09:54 PM

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