Defining particular values of a function

Hi,

so I'm an absolute beginner and I have the following problem: I want a function which looks something like this:

f(1)=1, f(n)=0 for n =/= 1.

My attempt

if n=1
  f=1
else
  f=0

returns the error:

The expression to the left of the equals sign is not a valid target for an assignment.

(where they refer to the "n")

So: what is the problem with that and how is it done? Also, how should I go about that if I have multiple particular values I want to define?

Thanks in advance :)

Answer 1

[Honglei Chen]

Since you are comparing the number, it should be

n==1

[Georg]

Thanks!

Say I want to define f(1),f(2),f(3) seperately.

Is there a clean way to do that (without using if else)?

[Honglei Chen]

Say you need 10 of them

f = zeros(10,1);
f(1) = 1;