fatal rival
How do I cheat?
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Joined: 08 Jul 2007
Posts: 8
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 Posted: Sun Jul 08, 2007 6:51 pm Post subject: fraction calculater-source code included |
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this is simple fraction calculater i made in c++.
here are the source codes
i perfer to use modulo for this code(for the fraction class), so it is more readable.
enjoy! 
| Code: |
// fraction calculater : Defines the entry point for the console application.
//
#include "stdafx.h"
using namespace std;
class fraction{
public:
int num,den;
void set(int n, int d){num=n;den=d;normalize();}
int getnum() {return num;}
int getden() {return den;}
int div(int a,int b,int c,int d);
int multi(int a,int b,int c,int d);
int add(int a,int b,int c,int d);
int sub(int a,int b,int c,int d);
private:
void normalize();
int gcf(int a,int b);
int lcm(int a, int b);
};
int _tmain(int argc, _TCHAR* argv[]){
cout<<"\tThis is a calculater only for fractions.";
while(1){
int a=0,b=0,c=0,d=0;
int o=0;
fraction fract;
int k=0;
cout<<"\nEnter 1 to multiply or enter 2 to divide or 3 to add or 4 to subtract.";
cin>>k;
switch(k){
default:
break;
case 1:
cout<<"\nget first numerator";
cin>>a;
cout<<"\nget first denominator";
cin>>b;
fract.set(a,b);
cout<<"\nget second numerator";
cin>>c;
cout<<"\nget second denominator";
cin>>d;
fract.set(c,d);
fract.multi(a,b,c,d);
fract.set(fract.num,fract.den);
cout<<fract.getnum()<<"/"<<fract.getden();
break;
case 2:
cout<<"\nget first numerator";
cin>>a;
cout<<"\nget first denominator";
cin>>b;
fract.set(a,b);
cout<<"\nget second numerator";
cin>>c;
cout<<"\nget second denominator";
cin>>d;
fract.set(c,d);
fract.div(a,b,c,d);
fract.set(fract.num,fract.den);
cout<<fract.getnum()<<"/"<<fract.getden();
break;
case 3:
cout<<"\nget first numerator";
cin>>a;
cout<<"\nget first denominator";
cin>>b;
fract.set(a,b);
cout<<"\nget second numerator";
cin>>c;
cout<<"\nget second denominator";
cin>>d;
fract.set(c,d);
fract.add(a,b,c,d);
fract.set(fract.num,fract.den);
cout<<fract.getnum()<<"/"<<fract.getden();
break;
case 4:
cout<<"\nget first numerator";
cin>>a;
cout<<"\nget first denominator";
cin>>b;
fract.set(a,b);
cout<<"\nget second numerator";
cin>>c;
cout<<"\nget second denominator";
cin>>d;
fract.set(c,d);
fract.sub(a,b,c,d);
fract.set(fract.num,fract.den);
cout<<fract.getnum()<<"/"<<fract.getden();
break;
}
cout<<"\nenter any number to conti or 0 to quit";
cin>>o;
if(o==0)
break;
}
return 0;
}
void fraction::normalize(){
if(den==0||num==0){
num=0;
den=1;
}
if (den<0){
num*=-1;
den*=-1;
}
int n=gcf(num,den);
num/=n;
den/=n;
}
int fraction::gcf(int a,int b){
if (a%b==0)
return abs(b);
else
return gcf(b,a%b);
}
int fraction::lcm(int a,int b){
return (a/gcf(a,b))*b;
}
int fraction::div(int a,int b,int c,int d){
num=a*d;
den=b*c;
return(num,den);
}
int fraction::multi(int a,int b,int c,int d){
num=a*c;
den=b*d;
return(num,den);
}
int fraction::add(int a,int b,int c,int d){
den=lcm(b,d);
num=(a*den/b)+(c*den/d);
return (num,den);
}
int fraction::sub(int a,int b,int c,int d){
den=lcm(b,d);
num=(a*den/b)-(c*den/d);
return (num,den);
} |
Last edited by fatal rival on Sun Jul 08, 2007 7:51 pm; edited 2 times in total |
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