- #1

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## Main Question or Discussion Point

If you have an equation with a variable which isn't defined for a given value or values, how do you express this in proper notation? For example:

x=1/((y-2)(y-3))

Do I write simply " y<2 or 2<y<3 or 3<y" or is there a better way to express it?

Thx

x=1/((y-2)(y-3))

Do I write simply " y<2 or 2<y<3 or 3<y" or is there a better way to express it?

Thx