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发表于 2009-11-26 08:51:36
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来自: 中国广东深圳
给楼主一份反渐开线函数的C++源代码:6 C2 ~7 M" o. m, R
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//自定义反渐开线函数; |& u( s; f/ T* ?* o$ G
double __fastcall TForm_Inv::ArcInv(double x)
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const double MaxError=0.0000000001, MaxCount=100000;- E2 H5 C- w' g! G4 n# n$ F) r8 z
double x1,x2,Error;
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x1 = 3*x;
- _9 K2 O8 [. n, o) H x1 = exp(log10(x1)/3);
' V$ K% K4 h. M+ q' b' ^3 P Error =1;2 k; C- P5 ^; @" ~* c" l
num = 0;; r$ ?9 A2 p2 M6 S* J
while ((Error > MaxError) && (num < MaxCount))
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x2 = acos(sin(x1)/(x+x1));, k8 {! O/ @6 T: J% h& [# |% p/ t
Error = fabs(x2 -x1);6 y7 F N0 q s. d+ W7 [4 j9 h
num++;
& ?* j$ v7 Q! ?% G' m9 U" Z9 S4 y x1 = x2;
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return(x1);/ q( j7 [! E, I
}
7 S( D1 S, N5 W; w****************
, E* v4 t" h' R程序运行界面参考附图! |
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