[問題] Do while迴圈
開發平台(Platform): (Ex: VC++, GCC, Linux, ...)
C
問題(Question)：
想要用Bisection法求一個函數的解，可是do while迴圈怎麼設他都給我一直跳出...
請問板上的大神們我哪個地方沒有注意到嗎?
程式碼(Code)：(請善用置底文網頁, 記得排版)
ans11=ans1+1;
do {
z=(ans1+ans11)/2;
y1=
(ans1*ans1*ans1*ans1)-(9*ans1*ans1*ans1)-(2*ans1*ans1)+(120*ans1)-(130);
y2=
(ans11*ans11*ans11*ans11)-(9*ans11*ans11*ans11)-(2*ans11*ans11)+(120*ans11)-(130);
y3= (z*z*z*z)-(9*z*z*z)-(2*z*z)+(120*z)-(130);
if (y1*y3<0) {
ans11=(ans1+z)/2;
}
else if (y2*y3<0){
ans1=(z+ans11)/2;
}
}while((ans11-ans1)<0.001);
補充說明(Supplement)：
他搞了我兩個多小時我還是找不到BUG ....
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