x undefined (Catenary Cable Case Study)

Hi, I am hard coding an equation and the result is 'x' is undefined. What would went wrong with this? code below.

function fval = bisectCase2 (x)

fval = (x/12)*cosh((12/x)*(50))+6-(x/12)-15;

end

Answer 1

[Sargondjani]

What you have done is programmed a function. So this function calculates fval when you give a value of x.

You can now call this function by typing in the command prompt:

x=3;

fval = bisectCase2(x);

This will give you fval for x=3; Note that the function should be in the search path (so for example in your current directory).