invalid use of operator

I am trying to create an exponential function and then use the data for another script. To be more specific, I have a script file with an exponential function, but every single time I run the code I get the message: File: modfunc.m Line: 1 Column: 27

Invalid use of operator.

Here is the code:

function out = modfunc(x,a:end);

out = a(1)*exp(a(2)*x);

|x| representing time and |a| vector a with two values representing the coefficients.

[Walter Roberson]

function out = modfunc(x,a:end)

What is your intention for the a:end clause ?

[Dionysios]

Thank you, I should have removed :end. Now it works perfectly.

Answer 1

[John D'Errico]

Looks great. Except, what you have written is not valid MATLAB syntax.

Why do you think you needed to include the :end in there? a is a vector of length 2. No problem.

function out = modfunc(x,a);
out = a(1)*exp(a(2)*x);

[Dionysios]

Thank you, I hadn't noticed it and now the code works.

Answer 2

[Sulaymon Eshkabilov]

The corrected syntax of this is:

function out = modfunc(x,a);
out = a(1)*exp(a(2)*x);

[Dionysios]

Thank you, it works like a charm

[Sulaymon Eshkabilov]

Most welcome!