Error trying to use a function within a function?
显示 更早的评论
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.
3 个评论
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
2018-9-11
采纳的回答
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.
2 个评论
Susannah Gurtler
2018-9-11
"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).
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