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In mathematics the exact meaning of inverse may be determined by another word - for example an ''additive'' inverse is the number which when added to the original number makes zero, so -3 is the additive inverse of 3. At other times its meaning may be determined by context - when discussing functions an inverse will be understood to be the function that reverses the effect of a given function, so for non-negative real numbers taking the positive [[square root]] would be the inverse of squaring.

In mathematics the exact meaning of inverse may be determined by another word - for example an ''additive'' inverse is the number which when added to the original number makes zero, so -3 is the additive inverse of 3. At other times its meaning may be determined by context - when discussing functions an inverse will be understood to be the function that reverses the effect of a given function, so for non-negative real numbers taking the positive [[square root]] would be the inverse of squaring.

The concept of inverses is strongly related to that of "identity". A mathematical object, when combined with its inverse, will produce the relevant identity. In the examples above zero is the identity for addition, and the function which leaves things unchanged is called the identity function.

The concept of inverses is strongly related to that of "identity". A mathematical object, when combined with its inverse, will produce the relevant identity. In the examples above zero is the identity for addition, and the function which leaves things unchanged is called the identity function. HI GEORGE, HOW FAST CAN YOU REVERT THIS???

===Examples===

===Examples===