Checking if inputs of function are numeric

Hi, I'm relatively new to using functions, so I'm using a basic one:

function [x]= functionname(L,C,R,V,F,State)

How would I create a variable with the value of L within the function? So I can use isnumeric to make sure L is a valid input.

Also, if one of the inputs was in the form 1:10:10000, how would i create a variable of just the last figure (the 10000).

Thanks in adanvance!

Answer 1

[the cyclist]

 >> tf = isnumeric(L)

will return a logical value (true/false) into the variable tf.

 >> xe = x(end)

will return the last value in x, and put it into the variable xe.

Answer 2

[Cedric]

L is a "variable within the function". It is a local variable, created when the function is called, and its value is set to be the value of the first argument listed in the call. You don't need to create a copy of L to be able to use it.

There are different ways to test L; you might want to look up for is ( is*), isa, class, size, numel in the help.

For the second point, if V for example were a vector, you could get its last element using V(end).