Q: What was the geometry student looking for at the beach? * [& Z" U& b1 n% G' _1 ^+ O( ~7 r- F ; F/ l& G6 r/ K$ `' _7 ? PA: A tangent. * X; m6 ~' Z$ M , G2 M% Q0 |% [& l) B' N; U/ W$ Utangent 5 \4 J' U% K% X. Y# N V noun% Z* }$ D$ y- ]) S
(geometry) a straight line that touches the outside of a curve but does not cross it
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发表于 2009-4-8 12:18
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