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#include<iostream>
#include<stdlib.h>
#include<conio.h>
#include<math.h>
#include<windows.h>
using namespace std;
int main()
{
SetConsoleTextAttribute (GetStdHandle(STD_OUTPUT_HANDLE), FOREGROUND_BLUE|
FOREGROUND_GREEN|
FOREGROUND_INTENSITY|
BACKGROUND_RED );
string str;
int a,b,c,d,u,l,m,o;
double f,v,n;
float h;
char e[30];
do
{
cout<<"Calculator Beta version: 0.9.9.8 \nSelect calculator types: \n1 FOR ARITHEMATICS: \n2 FOR SCIENTIFIC:\n3 FOR TRIGONOMETRIC\n ";
cin>>u;
if(u==1)
{
cout<<"Enter 1 for addition \n Enter 2 for subtraction \n Enter 3 for multiplication \n Enter 4 for division \n ";
cin>>a;
if(a==1)
{
cout<<"Enter two number to add ";
cin>>b>>c;
d=b+c;
cout<<"sum of "<<b<< " and "<<c<<" is "<<d<<"\n";
getch();}
else if(a==2){
cout<<"Enter two number to subtract ";
cin>>b>>c;
d=b-c;
cout<<"subtraction of "<<b<< " from "<<c<<" is "<<d<<"\n";
getch();}
else if(a==3)
{
cout<<"Enter two number to multiply ";
cin>>b>>c;
d=b*c;
cout<<"multiplication of "<<b<< " and "<<c<<" is "<<d<<"\n";
getch();}
else if(a==4)
{
cout<<"Enter two number to add ";
cin>>b>>c;
d=b/c;
cout<<"division of "<<b<< "/"<<c<<" is "<<d<<"\n";
getch();
}
else{
cout<<"You enter wrong number";
}
}
else if(u==2)
{
cout<<"Enter 1 to find log:\nEnter 2 to find percentage: \n3 For power: \n4 for square root ";
cin>>a;
if(a==1)
{
cout<<"Enter number to find log: ";
cin>>b;
f=log10(b);
cout<<"log of "<<b<<" is "<<f<<" \a \n";
getch();}
else if(a==2)
{
cout<<"Enter number to find percentage : \n ";
cin>>v;
cout<<"Enter total number \n";
cin>>n;
f=(v*100)/n;
cout<<"percentage of "<<v<< " from "<<n<< " is "<<f<<" \a \n";
getch();
}
else if(a==3)
{
cout<<"Enter Base: \n ";
cin>>h;
cout<<"Enter exponent: ";
cin>>a;
cout<<h<<" power "<<a<< " is equal to \a \n "<<pow(h,a);
getch();
}
else if(a==4)
{
cout<<"Enter number to find square root: ";
cin>>f;
cout<<"square root of "<<f<< " is "<<sqrt(f);
getch();
}
else{
cout<<"You enter wrong number";
}
}
else if(u==3)
{
cout<<"Enter 1 to find sin\nEnter 2 for cos\nEnter 3 for tan\n";
if(a==1)
{
cout<<"Enter number to find sin: ";
cin>>l;
m=sin(l);
cout<<"sin of "<<l<<" is "<<m<<" \a \n";
getch();
}
else if(a==2)
{
cout<<"Enter number to find cos : \n ";
cin>>v;
b=sin(v);
cout<<"cos of "<<v<< " is "<<b<<" \a \n";
getch();
}
else if(a==3)
{
cout<<"Enter number to find tan: ";
cin>>h;
v=tan(h);
cout<<"tan of "<<h<<" is "<<v;
getch();
}
else
{
cout<<"You enter wrong number: ";
}
}
SetConsoleTextAttribute (GetStdHandle(STD_OUTPUT_HANDLE), FOREGROUND_BLUE|
FOREGROUND_GREEN|
FOREGROUND_INTENSITY|
BACKGROUND_RED );
cout << "\n Enter any character to continue and Enter exit to exit: ";
cin>>str;
system("cls"); }
while(str != "exit");
}
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