inverse image

inverse image
The set of points that map to a given point (or set of points) under a specified function.

Under the function given by , the inverse image of 4 is , as is the inverse image of .


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  • inverse image — Math. the point or set of points in the domain of a function corresponding to a given point or set of points in the range of the function. Also called counter image …   Useful english dictionary

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  • Inverse function — In mathematics, if fnof; is a function from A to B then an inverse function for fnof; is a function in the opposite direction, from B to A , with the property that a round trip (a composition) from A to B to A (or from B to A to B ) returns each… …   Wikipedia

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  • inverse — [[t]ɪ̱nvɜː(r)s[/t]] 1) ADJ: usu ADJ n If there is an inverse relationship between two things, one of them becomes larger as the other becomes smaller. The tension grew in inverse proportion to the distance from their final destination. Ant:… …   English dictionary

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