I'm just trying to make a function file with the function f(x)=e^cosx -x^3+2x^2+5x-3

function y = e^cosx -x^3+2x^2+5x-3

%I keep getting a parse error at the = that says it might be invalid matlab syntax.

[Stephen23]

https://web.archive.org/web/20240723044743/https://www.mathworks.com/matlabcentral/answers/2139446-i-m-just-trying-to-make-a-function-file-with-the-function-f-x-e-cosx-x-3-2x-2-5x-3

Answer 1

[Taylor]

function y = myFunc(x)
y = exp(cos(x)) - x^3 + 2*x^2 + 5*x -3;
end

[Walter Roberson]

Possibly

y = exp(cos(x) - x^3 + 2*x^2 + 5*x - 3);

or possibly

y = exp(cos(x)) - (x^3 + 2*x^2 + 5*x - 3);

or possibly

y = exp(cos(x) - (x^3 + 2*x^2 + 5*x - 3));

.. The notation is somewhat ambiguous.