[問題] codeblock和VC studio執行結果不同
開發平台(Platform): (Ex: VC++, GCC, Linux, ...)
codeblock 和 vc studio
額外使用到的函數庫(Library Used): (Ex: OpenGL, ...)
問題(Question):
一個浮點數去迭代運算
運算後結果不同
餵入的資料(Input):
預期的正確結果(Expected Output):
錯誤結果(Wrong Output):
程式碼(Code):(請善用置底文網頁, 記得排版)
#include <stdio.h>
int main()
{
int i,j,M;
double x1=0.123456789,mu1=4;
M=162;
for(i=0;i<M;i++)
x1 = mu1 * x1 *(1-x1) ;
printf("%f \n",x1);
}
補充說明(Supplement):
http://ppt.cc/Y;bl codeblock執行結果為0.227385
http://ppt.cc/Ovlx VC 執行結果為0.939642
我用過matlab去驗證 matlab答案為0.9396
想請問codeblock...怎麼會差這麼多 orz
謝謝
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