programming-examples/c++/Others/Simple calculater program.cpp
2019-11-15 12:59:38 +01:00

96 lines
2.2 KiB
C++

Simple calculater program
Code :
#include <iostream>
#include <conio.h>
#include <stdlib.h>
#include <dos.h>
#include <math.h>
using namespace std;
int main(int argc, char* argv[])
{
float input1;
float input2;
double output;
char what;
char num1[34];
char num2[34];
gotoxy(15,1);
cout<<"welcome to the calculater program"<<endl;
sleep(5);
clrscr();
clrscr();
for(;;)
{
clrscr();
cout<<"enter the first number:"<<endl;
cin>>num1;
input1=atof(num1);
clrscr();
cout<<"enter the second number:"<<endl;
cin>>num2;
input2=atof(num2);
clrscr();
cout<<"enter
opearation
+.add
-.minus
*.multiply
/.divide
s.square
root
e.exitt"<<endl;
cin>>what;
switch(what)
{
case'+':
output=input1+input2;
clrscr();
cout<<input1<<what<<input2<<"="<<output<<endl;
system("PAUSE");;
break;
case'-':
output=input1-input2;
clrscr();
cout<<input1<<what<<input2<<"="<<output<<endl;
system("PAUSE");
break;
case'*':
output=input1*input2;
clrscr();
cout<<input1<<what<<input2<<"="<<output<<endl;
system("PAUSE");
break;
case'/':
output=input1/input2;
clrscr();
cout<<input1<<what<<input2<<"="<<output<<endl;
system("PAUSE");
break;
case's':
case'S':
output=sqrt(input1);
clrscr();
cout<<"the square root of "<<input1<<" is
"<<output<<endl;
system("PAUSE");
break;
default:
cout<<"ok"<<endl;
system("PAUSE");
exit(0);
}
}
system("PAUSE");
return 0;