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发表于 2016-11-14 18:11:56
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回复 1# ya574544187
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* o5 N. _1 p, o9 n: T P自己看吧,官方的说明:. f' V3 |3 |% a9 w% b" h
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/ i+ S& k, E2 e) ]advanced math functions
% z4 ?+ K( e; N9 _( c/ S# x5 q0 for values less then 0
( C. l$ e$ T# g+ e5 W2 y+ Y1 for values greater then pr equal to 0. ~8 T* S" G3 t& t; k6 o& }- G
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advanced math functions+ T3 f; ~1 v6 H9 _5 U
0 for values equal to 0
5 Q/ ^/ u1 J7 s- b9 _) }- {; D1 for values not to 0
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& L+ ~* }7 u1 [$ Y( R1 D+ ~9 s9 sadvanced math functions
V6 U5 ?% y, K- k9 E0 for negative values8 n3 w$ j3 g1 S6 f w
1 for zero : f' U6 R% W4 P0 a
2 for positive values |
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