Program With Float Values

[sportsguy09]

This may seem to have a very easy answer, but I'm totally confused. I'm trying to write a program gets two float values from the user. The program should output the equation and answer for the addition, subtraction, multiplication, and division operations.

So you could have something like:

Input: 4 3

Output: 4+3=7 4-3=1 4*3=12 4/3=1.3

I know how to write something that can display the answer from specific variables that I set, but I'm unsure how to write it this way, so it prints those four equations from whichever two numbers the user inputs. Any help you be much appreciated.

[gcampton]

use doubles

What every computer scientist should know about floating point arthmetic

http://docs.sun.com/source/806-3568/ncg_goldberg.html

[sportsguy09]

What do you mean by using doubles? Sorry, I'm just completely new at this.

[gcampton]

sorry, I edited...

read the above post. A double is a type much like an int.

You're getting the user to input 2 values which seem to be integers. However your output should be a double as there will be decimals involved.

[gcampton]

So lets say you have 2 variables input by user and 1 for the answer.

int num1, num2;
double answer;

cout << "Enter 2 integers";
cin >> num1 >> num2;
answer = num1/num2;
cout << answer << endl;

answer = num1+num2;
cout << answer << endl;
answer = num1*num2;
cout << answer << endl;
// etc 

[sportsguy09]

Thank you so much. You've been a major help. I really appreciate it.

[Disch]

answer = num1/num2;

This actually won't work -- num1/num2 performs integer division (since they're both ints), therefore 'answer' will not be set as you expect.

IE: 5/2 = 2 (not 2.5, even though answer is a double)

You'd need to cast num1 or num2 (or both) to double before the division:

answer = double(num1) / num2;