This file containes necessary functions to perform the functionalities of the Phone Calculator
- Contains necessary functions to handle the features included in the Calculator App .
- functions included in < cmath> is also extensively used .
- PI is declared const .
double add(){ double n1,n2; cout<< "\t\tInput[1] : "; cin>>n1; cout<<"\t\tInput[2] : "; cin>>n2; return n1+n2; }
double sub(){ double n1,n2; cout<<"\t\tInput[1] : "; cin>>n1; cout<<"\t\tInput[2] : "; cin>>n2; return n1-n2; }
double mul(){ double n1,n2; cout<<"\t\tInput[1] : "; cin>>n1; cout<<"\t\tInput[2] : "; cin>>n2; return n1*n2; }
double div(){ double n1,n2; cout<<"\t\tInput[1] : "; cin>>n1; cout<<"\t\tInput[2] : "; cin>>n2; if(n2==0){ throw "Caution: Divided by zero is undefined "; } return n1/n2; }