Index exceeds the number of array elements (1)

function [] = diggerangle(L_12, L_23, L_13, x)

iteration_limit = 20;   
tolerance = 10^-7;

x = [x(1)*(pi/180);x(2)*(pi/180)];

for count = 1:iteration_limit + 1
    if count == iteration_limit + 1
    error('Iteration limit reached. Iteration did not converge.')
    end
    
f =  [L_12*cos(x(1))-(L_13)-L_23*cos(x(2));...
    L_12*sin(x(1))-L_23*sin(x(2))];

 if abs(f)<tolerance
    break
 end

df = [-L_12*sin(x(1))+L_23*sin(x(2));...
    L_12*cos(x(1))-L_23*cos(x(2))];
    
    
 x = x - inv(df)*f;
end

x(1);
x(2);
x(1)*(180/pi)
x(2)*(180/pi)

end

[Ameer Hamza]

How are you calling this function. Which line is giving this error?

[Ben Nolan]

line 6: x = [x(1)*(pi/180);x(2)*(pi/180)];

this is the problem it is giving me the error: Index exceeds the number of array elements (1)

Answer 1

[the cyclist]

You didn't answer Ameer's first question, but it seems clear that when you call the function

diggerangle(L_12, L_23, L_13, x) % what are the inputs here?

that the value of x is simply a scalar, and not a vector. Therefore,

x(2)

is going to give an error, because x only has one element.