please help with this function
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function [th rad]=cartopolar25(x,y
t=atan(y/x); rad=sqrt(x^2+y^2); if if x<0 if y<0 th=180+t return else th=180-t return end else if y<0 th=-t return else th=t return end end
Hi I need help with this code, if you guys see any mistakes please let me know. I have to make a function to determine the polar coordinates from the Cartesian plane, thanks for the help yes I was able to get the degrees now all I need is the radians any tips with this current format thanks
Narges M on 23 Jul 2013
your function is this:
function [th rad]=cartopolar25(x,y)
th = atan(y/x);
rad = sqrt(x^2+y^2);
and you need to call it like this:
[t,r] = cartopolar25(-11,20);
the output will be:
More Answers (3)
Gorji on 23 Jul 2013
What is Y and X? Are they matrix? I think the structure of 'if' is incorrect you must use if & elseif & else
Andrew Reibold on 23 Jul 2013
atan doesn't take the 'y over x' value you seem to be thinking of. It takes an angle in radians....
Y = atan(X) returns the inverse tangent (arctangent) for each element of X. For real elements of X, atan(X) is in the range [–π/2, π/2].
The atan function operates element-wise on arrays. The function's domains and ranges include complex values. All angles are in radians.
Example Graph the inverse tangent function over the domain –20 ≤ x ≤ 20. x = -20:0.01:20; plot(x,atan(x)), grid on