Question about precision in Code.
Mar 1, 2011 at 8:24pm UTC
I want to set precision to 2 with the results. Does that mean that I have to put << setprecision (2) << after every weight on each planet or is there something easier I can do?
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#include<iostream>
#include<cmath>
using namespace std;
int CheckWeight(int weight, string Planet);
int main()
{
int weight,res;
string planetName;
do {
cout << "Please enter your weight of your object to the nearest whole number." <<endl;
cin >> weight;}
while (cin.good()==false );
cout << " " << endl;
do {
cout << "Please enter a planet name from the following list." << endl;
cout << "Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune" << endl;
cin >> planetName;
cout << " " << endl;
// Call function to check weight
res = CheckWeight(weight, planetName);
}while (res==1);
system("PAUSE" );
return 0;
}// end main()
// Function for calculating weight
int CheckWeight(int weight, string Planet)
{
int Result=0;
if (Planet== "Mercury" ){
cout << "Your weight on Mercury is " << (weight*0.4155)<< endl;
}
else if (Planet== "Venus" ){
cout << "Your weight on Venus is " << (weight*0.8975)<< endl;
}
else if (Planet== "Earth" ){
cout << "Your weight on Earth is " << (weight*1.0)<< endl;
}
else if (Planet== "Mars" ){
cout << "Your weight on Mars is " << (weight*0.3507)<< endl;
}
else if (Planet== "Jupiter" ){
cout << "Your weight on Jupiter is " << (weight*2.5374)<< endl;
}
else if (Planet== "Saturn" ){
cout << "Your weight on Saturn is " << (weight*1.0677)<< endl;
}
else if (Planet== "Uranus" ){
cout << "Your weight on Uranus is " << (weight*0.8947)<< endl;
}
else if (Planet== "Neptune" ){
cout << "Your weight on Neptune is " << (weight*1.1794)<< endl;
}
else {
cout << "You entered a wrong planet name. Please try again " << endl;
cout << "Please try again " << endl;
Result=1;
}
return Result;
Last edited on Mar 1, 2011 at 8:27pm UTC
Mar 1, 2011 at 8:36pm UTC
you can call cout.precision ( or cout << setprecision ) before line 35 so it will be applied to any following output
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