Image

From Online Dictionary of Crystallography

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<font color="blue">Image</font> (''Fr''). <font color="black">Immagine</font> (''It''). <font color="purple">像</font> (''Ja'').
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<font color="blue">Image</font> (''Fr''); <font color="black">Immagine</font> (''It''); <font color="purple">像</font> (''Ja''); <font color="orange">صورة</font> (''Ar'').

Revision as of 09:16, 14 September 2017

Image (Fr); Immagine (It); (Ja); صورة (Ar).


Let X and Y be sets, f be the function f : XY, and x be some member of X. Then the image of x under f, denoted f(x), is the unique member y of Y that f associates with x.

The image of a subset AX under f is the subset of Y defined by

f[A] = {yY | y = f(x) for some xA}.

See also