The times they are a-changin’.
This post seems to be older than 18 years—a long time on the internet. It might be outdated.
//Name: Andrew Ferguson
//Date: 2/20/2005
//Purpose: To create a calculator to calculate different things. w00t!
#include
#include
void getOption();
double bmi(double& pounds, double& inches);
void doBMI();
double poundsToKilograms(double& input);
void doPoundsToKilograms();
double feetToMeters(double& input);
void doFeetToMeters();
void quadratic(int& a, int& b, int& c, double& soln_1, double& soln_2);
void doQuadratic();
int gcf(int& a, int& b, int& c);
void doGCF();
double stardate(int& mont, int& day, int& year, int& hour, int& minute, int& second);
void doStardate();
int main()
{
getOption();
return 0;
}
void getOption(){
int choice;
cout << endl << "AFdN Calc v0.1" << endl << endl;
do{
cout << "Your options are:" << endl
<< "1 - Calculate your BMI" << endl
<< "2 - Convert Pounds to Kilograms" << endl
<< "3 - Convert Feet to Meters" << endl
<< "4 - Solve a quadratic equation (no complex numbers)" << endl
<< "5 - Find the Greatest Common Factor for 3 numbers" << endl
<< "6 - Convert a date and time into Stardate format" << endl
<< "0 - Exit" << endl << endl
<< "Enter your choice: ";
cin >> choice;
}while1;
switch(choice)
{
case 1:
doBMI();
getOption();
break;
case 2:
doPoundsToKilograms();
getOption();
break;
case 3:
doFeetToMeters();
getOption();
break;
case 4:
doQuadratic();
getOption();
break;
case 5:
doGCF();
getOption();
break;
case 6:
doStardate();
getOption();
break;
case 0:
break;
}
}
double bmi(double& pounds, double& inches){
return (poundsToKilograms(pounds)/(feetToMeters(inches)*feetToMeters(inches)));
}
void doBMI(){
double pounds, inches;
cout << "Enter your weight in pounds:";
cin >> pounds;
cout << "Enter your height in inches: ";
cin >> inches;
cout << "You have a BMI of " << bmi(pounds, inches) << endl;
}
double poundsToKilograms(double& input){
return (input*0.454);
}
void doPoundsToKilograms(){
double pounds;
cout << "Enter pounds: ";
cin >> pounds;
cout << pounds << " lbs is " << poundsToKilograms(pounds) << " kg" << endl;
}
double feetToMeters(double& input){
return (input*0.3048/12);
}
void doFeetToMeters(){
double inches;
cout << "Enter inches: ";
cin >> inches;
cout << inches << " in is " << feetToMeters(inches) << " m" << endl;
}
void quadratic(int& a, int& b, int& c, double& soln_1, double& soln_2){
soln_1 =2)/(2*a);
soln_2 =3)/(2*a);
}
void doQuadratic(){
int a,b,c;
double soln_1, soln_2;
cout << "Enter term 'a':";
cin >> a;
cout << "Enter term 'b':";
cin >> b;
cout << "Enter term 'c':";
cin >> c;
quadratic(a,b,c,soln_1,soln_2);
cout << "The solution to " << a << "x^2 + " << b << "x + " << c << " = 0 is x=" << soln_1 << " and x=" << soln_2 << endl;
}
int gcf(int& a, int& b, int& c){
{
int remainder = b % a;
if (remainder != 0)
return gcf(remainder,a,c);
remainder = c % a;
if (remainder != 0)
return gcf(remainder,a,c);
return a;
}
}
void doGCF(){
int a,b,c;
cout << "Enter first term: ";
cin >> a;
cout << "Enter second term: ";
cin >> b;
cout << "Enter third term: ";
cin >> c;
cout << "The Greatest Common Factor is " << gcf(a,b,c) << endl;
}
double stardate(int& month, int& day, int& year, int& hour, int& minute, int& second){
double nowTime =4*1000;
return starTime;
}
void doStardate(){
int month, day, year, hour, minute, second;
cout << "Enter the month: ";
cin >> month;
cout << "Enter the day: ";
cin >> day;
cout << "Enter the year: ";
cin >> year;
cout << "Enter the hour: ";
cin >> hour;
cout << "Enter the minute: ";
cin >> minute;
cout << "Enter the second: ";
cin >> second;
cout << endl << stardate(month, day, year, hour, minute, second);
}
[/code]
choice > 7) || (choice < 0 ↩
-b)+sqrt((b*b)-(4*a*c ↩
-b)-sqrt((b*b)-(4*a*c ↩
2322-1970)*365.2422*24*60*60)+(90*24*60*60); double itTime; int monthDays[] = {0, 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334}; itTime = ((year-1970)*365.2422*24*60*60)+(monthDays[month]*24*60*60)+(day*24*60*60)+((hour-7)*60*60)+(minute*60)+second; double newTime = itTime - nowTime; double starTime = (newTime / (60*60*24*365.2422 ↩