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发表于 2009-11-26 08:51:36
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显示全部楼层
给楼主一份反渐开线函数的C++源代码:
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//自定义反渐开线函数
/ G9 j; p. {6 N" W& O- }double __fastcall TForm_Inv::ArcInv(double x)& j1 V, F) X: N' x3 S7 C7 g/ [
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const double MaxError=0.0000000001, MaxCount=100000;
* S9 H ?2 W4 j! q& [ double x1,x2,Error;
$ N# n# v, l" d/ T/ h int num;: X! z+ A* p! l, a5 `+ K
x1 = 3*x;, ?$ A" v, Z. L7 H9 s
x1 = exp(log10(x1)/3);
8 S1 t% ?. m7 r Error =1;* i6 o x4 `, Y$ e9 [
num = 0;
; _0 W! }3 M' I" }) ` while ((Error > MaxError) && (num < MaxCount))* r+ X1 s4 m# O' V* o
{
3 q. s( h2 k; _# j9 T" E x2 = acos(sin(x1)/(x+x1));
2 I: D( s3 Y/ m Error = fabs(x2 -x1);2 u9 X& D! z; E6 @4 ~/ i
num++;
* _# Z: P6 r6 m3 e9 b; d" ?, W x1 = x2;
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return(x1);
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3 \# a4 V/ ^* q) q* I程序运行界面参考附图! |
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