affine

Definition

Assigning finite values to finite quantities.

Etymology

From Latin affinis (“connected with”).

Example Sentences

• "Now, let P, Q, and R be three noncollinear points that are left fixed by an affine transformation T."
• "In our example of the affine cryptosystem family, deciphering is also accomplished by an affine map, namely P#92;equiva#123;-1#125;C-a#123;-1#125;b#92;bmodN, and so the deciphering transformation uses the same algorithm as the enciphering transformation, except with a different key, namely, the pair (a#123;-1#125;,-a#123;-1#125;b)."
• "Clearly every linear functional is affine, and every affine function is both convex and concave."

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