Function command y = f(x)

Question

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So, here's a screenshot of my problem.

The upper part is the text from a Matlab Essentials book, and the lower part is where I try the example given in the book.

Why is it giving me an error? What am I missing here?

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Answer 1

Star Strider 2014-10-15

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unction definitions of that sort are not permitted in regular script files, only within other function files. You have to create a new script with:

function y = f(x)

as the first line, then save the file as f.m. It should work then.

To call it from your main script:

x = 10;      % Random choice
y = f(x)

Answer 2

Orion 2014-10-15

0 个投票

because you're trying to declare a function in the command window, which is impossible.

a function can only be declared in a Mfile.