Mastodawn

Is there a mathematical property for a value which when applied to some function doesn’t change the result of the computation?

For example 1+ 3+ 0 = 1+3. 0 is “that” value here.
Example 2-> 3*4*1=3*4. 1 is “that” value here.

"Identity (element)".

0 is the additive identity. 1 is the multiplicative identity.

@jztusk ah, thank you!
Is this related to the identity function or is that something else?

I mean, one is a function and the other is an element, but the word "Identity" means "leaves unchanged" in both cases.

@jztusk thanks!