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