Error trying to use a function within a function?

Here's the script:

function [x, y] = XYFromAngles(alpha, beta, AB)
[~, b]=triangle(alpha, beta, AB);
x=b*cos(alpha);
y=b*sin(alpha);
disp('[x, y]=');
disp([x, y]);
end

And the scrip for the function triangle:

function [a,b]=triangle(alpha,beta,c)
alpha=alpha/180*pi;
beta=beta/180*pi;
gamma=pi-alpha-beta;
a=c/sin(gamma)*sin(alpha);
b=c/sin(gamma)*sin(beta);
end

Then it gives the error:

Not enough input arguments.
Error in XYFromAngles (line 2)
[~, b]=triangle(alpha, beta, AB);

I have entered all of the variables that I've defined but it doesn't compute it.

[mbvoyager]

When you are calling

[~, b]=triangle(alpha, beta, AB);

are alpha, beta and AB defined?

If I create those 2 functions and call triangle, I get some results:

   >>XYFromAngles(1,2,3)
  [x, y]=
      1.0809    1.6834

ans =

      1.0809

also, a question just for understanding are the functions XYFromAngles and triangle in separate files or in one file?

[Susannah Gurtler]

I defined alpha, beta and AB outside of running the command which I suspect is what caused my error. Does it only work if you enter it into the

XYFromAngles(alpha, beta, AB)

And yes they are in separate files.

[Stephen23]

"Does it only work if you enter it into the..."

Yes.

Answer 1

[Stephen23]

I don't get any error when I call your function:

>> XYFromAngles(1,1,1)
[x, y]=
   0.27019   0.42080
ans =  0.27019
>>

I suspect that you are clicking on the big green "Run" button, without providing any input values to the function. Ignore that big green "Run" button, it does not help you.

[Susannah Gurtler]

I had defined alpha, beta and AB by typing in the command window

alpha=...; beta=...; AB=...;

Is this way not correct?

[Stephen23]

"Is this way not correct?"

Its fine as a start... but you still need to provide those variables as inputs to the function:

XYFromAngles(alpha,beta,AB)

You defined the function to have three inputs, so you need to call it with three inputs. Note that names of the input arguments are totally unrelated to what happens inside that function (in case you thought that these are connected somehow).