Getting two outputs when using function with implemented if statement

Hey, I'm all new to MatLab and would like to know why I'm getting two outputs when using the following code:

function theta = acuteAngle(v1,v2)
theta = acos((dot(v1,v2)));
    if theta > pi/2
       disp(pi-theta);
    else 
       disp(theta);
    end
end

Result i get with following input:

Input:

disp(acuteAngle([-4/5, 3/5], [20/29, 21/29]))

Output: (i only want the first result : 1.4533)

    1.4533 
    
    1.6883

Answer 1

[Paul Hoffrichter]

In your acuteAngle function, there is a disp() line which gives you the first output. The calling routine disp(acuteAngle() gives you the second output.

To get only the first output, call the function like this:

acuteAngle([-4/5, 3/5], [20/29, 21/29]); % the semi-colon suppresses the output

[Alexander Jørgensen]

Thanks a lot Paul, that solved it!

[Paul Hoffrichter]

Glad to have helped.