我如何使用C ++来解决这个问题？ [英] HOW DO I DO THIS QUESTION BY USING C++?
问题描述
体检医师到达犯罪现场并取出死者的温度T_i。一小时后，体检医师再次获取死者的温度T_f。检查员注意到房间内的恒温器设定为恒定的T_a温度。根据这些数据和牛顿冷却定律，设计，编写，编译，运行和调试一个程序，该程序从用户接收（使用cin）温度T_i，T_f和T_a华氏度，并显示那些温度，常数k和近似值个人死亡与检查者到达之间的时间长度t_h（假设个体的体温在死亡时为T_d = 98.6华氏度）。
步骤1：从以下公式确定常数k：k =（ - log（（T_f - T_a）/（T_i - T_a）））/ 1.0
步骤2：从以下小时确定t_h：t_h =（ - log（（T_i - T_a）/（T_d - T_a）））/ k
步骤3：打印出t_h的值几个小时。
没关系，所以我尽了最大努力但答案却给了我'好像是一个正确的答案.....我不确定我做错了什么
The medical examiner arrives at the crime scene and takes the temperature, T_i, of the deceased. An hour later the medical examiner again takes the temperature T_f of the deceased. The examiner notices that the thermostat in the room is set for a constant T_a temperature. From this data and Newton's Law of Cooling, design, write, compile, run and debug a program that takes in (use cin) temperatures T_i, T_f and T_a in degrees Fahrenheit from the user and displays those temperatures, constant k, and the approximate length of time t_h in hours between the death of the individual and the arrival of the examiner (assume the individual's body temperature was T_d = 98.6 degrees Fahrenheit at the time of death).
Step 1: Determine constant k from: k = (-log((T_f - T_a)/(T_i - T_a)))/1.0
Step 2: Determine t_h in hours from: t_h = (-log((T_i - T_a)/(T_d - T_a)))/k
Step 3: Print out the value of t_h in hours.
okay, so I did my best but the answer it gives me don't seem like a right answer..... Im not sure if I did something wrong
#include<iostream>
#include<iomanip>
#include<cmath>
using namespace std;
int main()
{
double T_i,T_f,T_a,k,T_h;
const double T_d = 98.6;
cout<< "Determine length of time t_h in hours between the death of the individual and the arrival of the examiner "<<endl<<endl;
cout<< "Enter the value of T_i: ";
cin>> T_i;
cout<< "Enter the value of T_f: ";
cin>> T_f;
cout<< "Enter the value of T_a: ";
cin>> T_a;
k = (-log((T_f - T_a)/(T_i - T_a)))/1.0;
T_h = (-log((T_i - T_a)/(T_d - T_a)))/k;
cout<< setiosflags(ios::fixed)
<< setiosflags(ios::showpoint)
<< setprecision(4)
<< "time between the death of the individual and the arrival of the examiner:"<<T_h<< "hours"<<endl;
return 0;
}
推荐答案
这是作业。
我们不要为你做功课。
为什么？因为它没有帮助你。
试一试。
按照你的课程笔记。
如果您遇到问题，请发布一个问题，其中包含您尝试过的代码以及您遇到困境的详细信息。
我们非常乐意为您提供帮助......但只有您尝试
This is homework.
We don't do your homework for you.
Why? Because it doesn't help you.
Give it a try.
Follow your course notes.
When you get stuck, then post a question that includes the code you have tried and details of where you are stuck.
We are more than happy to help ... but only if you try
这篇关于我如何使用C ++来解决这个问题？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
