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#include <iostream>
#include <cmath>
using namespace std;
int main(int argc, char *argv[]) {
char c;
do{
string type;
string oper;
string shape;
string gtype;
//Basic math terms
float a;
float b;
float answ;
//Geometry
float base;
float height;
float side;
float area;
float base1;
float base2;
float length;
float width;
//To compile with Terminal, use the "g++ calculator.cpp o calculator" command
cout << endl << "Basic math = bm, Geometry = g, Square root = s. Power = p. Type end for the program to end.";
cin >> type;
//End program code
if(type=="end")
{
cout << "Bye!";
return 0;
}
//Specifys +,,*, and /
if(type=="bm")
{
cout << endl << "Addition, Subtraction, Multiplication, Division. Your choice? ";
cin >> oper;
if(oper=="addition")
{
cout << "Enter a number: ";
cin >> a;
cout << "A number to add to " << a << ": ";
cin >> b;
answ = a + b;
cout << endl << "Your sum is " << answ << endl;
}
else if(oper=="subtraction")
{
cout << "Enter a number: ";
cin >> a;
cout << "A number to subtract from " << a << ": ";
cin >> b;
answ = a  b;
cout << endl << "Your difference is " << answ << endl;
}
else if(oper=="multiplication")
{
cout << "Enter a number: ";
cin >> a;
cout << "A number to multiply " << a << " by: ";
cin >> b;
answ = a * b;
cout << endl << "Your product is " << answ << endl;
}
else if(oper=="division")
{
cout << "Enter a number:";
cin >> a;
cout << "Enter a number to divide " << a << " by: ";
cin >> b;
answ = a / b;
cout<< endl << "Your quotient is " << answ << endl;
}
else
{
cout << "Invalid input" << endl;
}
//Ends basic math code
}
//Starts geometry
if(type=="g")
{
cout << "Do you want to find the area or volume of a shape? ";
cin >> gtype;
if(gtype=="area"){
cout << "Do you want to find the area of a square, a rectangle, a trapezoid, a parallelogram, or a triangle?";
cin >> shape;
if(shape=="square"){
cout << "Enter the length of one side: ";
cin >> side;
answ = side * side;
cout << "The area of the square is: " << answ;
}
else if(shape=="rectangle"){
cout << "Enter the base: ";
cin >> base;
cout << "Enter the height: ";
cin >> height;
answ = base * height;
cout << "The area of the rectangle is " << answ;
}
else if(shape=="trapezoid"){
cout << "Enter base one: ";
cin >> base1;
cout << "Enter base two: ";
cin >> base2;
cout << "Enter the height: ";
cin >> height;
answ = .5 * (base1+base2) * height;
cout << "The area of the trapezoid is " << answ;
}
else if(shape=="parallelogram"){
cout << "Enter the base: ";
cin >> base;
cout << "Enter the height: ";
cin >> height;
answ = base * height;
cout << "The area of your parallelogram is " << answ;
}
else if(shape=="triangle"){
cout << "Enter the base: ";
cin >> base;
cout << "Enter the height: ";
cin >> height;
answ = .5*(base*height);
cout << "The area of your triangle is " << answ;
}
else
{
cout << "Invalid input" << endl;
}
if(gtype=="volume"){
cout << "Do you want to find the volume of a rectangular prism, or a cube? ";
cin >> shape;
if(shape=="rectangular prism"){
cout << "Enter the length: ";
cin >> length;
cout << "Enter the width: ";
cin >> width;
cout << "Enter the height: ";
answ = length*width*height;
cout << "The volume of the rectangular prism is " << answ << " .";
}
//Ends geometry code
}
}
}
//Starts square root code
if(type=="s"){
cout << "What number do you want to see the square root of? ";
cin >> a;
answ = sqrt(a);
cout << "The square root of " << a << " is " << answ << " .";
}
if(type=="p"){
cout << "Enter the base: ";
cin >> a;
cout <<"Enter the power: ";
cin >> b;
cout << a << " to the power of " << b << " is " << pow(a,b) << " .";
}
cout<< endl <<"Do you want to continue (Y/N)?" << endl;
cin>>c ;
}while(c=='y'c=='Y');
if(c == 'n'){
cout << "Program ended" << endl;
}
}
 