I need my angles in the [-pi:pi] range instead of [0:2*pi]?

I have an angle in degrees, 225 degrees. Now degtorad(225) function gives me:

>>degtorad(225)

ans =

    3.9270 radians

above 'ans' is in the range 0:2pi

I want to know the procedure that i get an answer in the range -pi:pi, as 225 degrees is also equal to -2.3562 radians

 225 degree=3.9270 rad
 225 degree=-2.3562 rad.

I hope I have made my point clear.

Thank you in advance.

[krishna teja]

wrapToPi

wrapTo2Pi

[Walter Roberson]

Good point, @krishna teja, wrapToPi should work well... at least for people who have the Mapping Toolbox.

Answer 1

[Walter Roberson]

R(R > pi) = R(R > pi) - 2*pi;

[Patrik Ek]

This does not account for multiple turns

[Jacob Ward]

True, but putting it inside a while loop would take care of the multiple turns, yes?

 temp = 0; 
 while R != temp
     temp = R;
     R(R > pi) = R(R > pi) - 2*pi;
 end

[Walter Roberson]

R = mod(R, 2*pi);
R(R > pi) = R(R > pi) - 2*pi;