[問題] Babylonian algorithm

看板C_and_CPP作者ManInBlackXD (小的)時間14年前 (2009/10/09 21:23)推噓1(1推 0噓 9→)

留言10則, 3人參與討論串1/1

剛剛寫了一個程式是關於猜平方根的程式如下 #include<iostream> using namespace std; int main() { //宣告要用到的變數 int n; double r,guess; const double RATE=0.01; char ans; do { //介紹程式 cout<<"This program is about The Babylonian algorithm to compute the square root of a number n."<<endl; //輸入資料 cout<<"Enter a number n: "; cin>>n; cout<<"Enter your initial guess: "; cin>>guess; //計算 while(((guess+r)/2-guess)/(guess+r)/2>RATE) { r=n/guess; guess=(guess+r)/2; } //輸出資料 cout<<"The answer close to the square of number n is:"<<guess<<endl; //問是否要繼續 cout<<"Do you want to continue?Press y for yes,n for no: "; cin>>ans; }while(ans=='y'||ans=='Y'); //結束 return 0; } 但是問題來了它只算一次就停了... 比如說我打n=100 guess=50 它顯示26 明明可以在算下去阿但他就是停了= = 請問是哪裡出了問題呢請高手幫忙解答感激 -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 140.113.63.2

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bleed1979

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bleed1979

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