Write a Simple Calculator Using If Else Statement that prompts the user to Input two Numbers. Then it will Display the Menu for Addition, Subtraction, Multiplication, Division, Square of 1st Number, Cube of 1st Number, Sin, Cos, Tan. After any choice it will Display the Answer
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Expert's answer
2013-04-05T12:05:36-0400
#include <conio.h> #include <iostream>
using namespace std;
//main function int main() { int choice=-1;//choice float firstnumber; float secondnumber; cout<<"Enter fisrt number: "; cin>>firstnumber; cout<<"Enter second number: "; cin>>secondnumber; do{ //Show menu cout<<"1 - Addition "; cout<<"2 - Subtraction "; cout<<"3 - Multiplication "; cout<<"4 - Division "; cout<<"5 - Square of 1st Number "; cout<<"6 - Cube of 1st Number "; cout<<"7 - Sin 1st Number "; cout<<"8 - Cos 1st Number "; cout<<"9 - Tan 1st Number "; cout<<"0 - Exit"; cout<<"Select one item: "; cin>>choice;//read one item float result=0;//result variable //Show result if(choice==1){ result=firstnumber+secondnumber; cout<<"Addition is: "<<result;//Addition cout<<" ";//new line } if(choice==2){ result=firstnumber-secondnumber; cout<<"Subtraction is: "<<result;//Subtraction cout<<" ";//new line } if(choice==3){ result=firstnumber*secondnumber; cout<<"Multiplication is: "<<result;//Multiplication cout<<" ";//new line } if(choice==4){ result=firstnumber/secondnumber; cout<<"Division is: "<<result;//Division cout<<" ";//new line } if(choice==5){ result=firstnumber*firstnumber; cout<<"Square 1st Number is: "<<result;//Square 1st Number cout<<" ";//new line } if(choice==6){ result=firstnumber*firstnumber*firstnumber; cout<<"Cube 1st Number is: "<<result;//Cube 1st Number cout<<" ";//new line } if(choice==7){ result=sin(firstnumber); cout<<"Sin 1st Number is: "<<result;//Sin 1st Number cout<<" ";//new line } if(choice==8){ result=cos(firstnumber); cout<<"Cos 1st Number is: "<<result;//Cos 1st Number cout<<" ";//new line } if(choice==9){ result=tan(firstnumber); cout<<"Tan 1st Number is: "<<result;//Tan 1st Number cout<<" ";//new line } }while(choice!=0);//exit if user enter 0
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