一道高一数学编写程序的题目

来源:百度知道 编辑:UC知道 时间:2024/05/15 08:03:24
求使1*2+2*3+3*4+…+n(n+1)<2008成立的最大整数值n,分别用“WHILE”语句和“UNTIL”语句编写计算程序。

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title> new document </title>
<script type="text/javascript">
<!--
function test1(){
var n = 0;
var sum = 0;
var temp = "";
while(sum<2008){
n+=1;
sum = ((n+1)*(2*n+1)*n)/6+n;
temp += n+"["+sum+"]\n";
}
var aa = document.getElementById('aa');
aa.value = (n-1)+"\n"+temp;
}
function test2(){
var n = 0;
var sum = 0;
var temp = "";