what does "one to one" means

that was a real math question wow didnt know thumbs up alan......yeah about that teacher thing though..???

denoting or referring to a situation in which two parties come into direct contact, opposition, or correspondence to eachother or when i get home and put on the fighting gloves as i pull out.....MY MATH HOMEWORK!

In math it usually means that when a value is put into a function, there is only one possible output. One value in produces one value out.

For example, think of the function y(x) = sin(x).  Whatever value of x we choose there is just one corresponding value of y.  If x = 45°, say, then y(45°) = 1/√2. One value in, one value out.

However, if we had the function y(x) = sin^-1(x),  then if x is 1/√2, there is more than one possible value for y - it could be 45° or 135° for example. One value in, more than one out.

I had to smile when I read this Zegroes.

I'll give you a thumbs up for that!

Hmmmm intresting what do you mean melody?

I was referring to this statement of yours

***that was a real math question wow didnt know***