This program doesn't run because some problem with the reduce fraction.
My reduce fraction is all right but when I tried to put that in this program, It has some errors.
Or maybe the switch menu is wrong? because I put another swith menu in the main switch menu.
I guess the problem is In the division - fraction section
the error says something like cases are skipped by something.. I don't remember because I only get the chances to use C++ in the class
Thanks guys! I appreciate it.
1) Addition
2) Subtraction
3) Multiplication
4) Division
a) answer as a decimal
b) answer as a fraction
c) answer as a number with a remainder
5) Multiplication by a percent (i.e. 10 times 20% equals 2)
6) Calculate powers. (i.e. 23=8)
7) Be able to figure out the area of a circle because you have PI=3.14159 on your calculator
8) Calculate an exponential (i.e. 8 x 103 = 8e3)
- //Claire's Calculator
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#include <iostream.h>
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#include <math.h>
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double pow(double x, double y);
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main()
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{
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int choice, choicee;
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const double PI = 3.14159;
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float a, b, c;
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int n, m;
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double cy;
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double x, y;
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float x_to_the_y;
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double r;
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int re, q;
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do //
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{
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cout << "Which calculation you wish to use?" << '\n';
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cout << "1 - Addition" << '\n';
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cout << "2 - Subtraction" << '\n';
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cout << "3 - Multiplication" << '\n';
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cout << "4 - Division " << '\n';
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cout << "5 - Multiplication by a percent " << '\n';
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cout << "6 - Calculate powers" << '\n';
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cout << "7 - Calculate a circle" << '\n';
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cout << "8 - Calculate an exponential" << '\n';
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cin >> choice; //get choice from the user
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if ((choice < 1 ) || (choice > 8))
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{
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cout << "Re-enter your choice.\n";
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}
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}
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while ((choice < 1 ) || (choice > 8));
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switch(choice)
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{
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case 1: // Addition
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cout << "enter 1st number: \n";
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cin >> a;
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cout << "enter 2nd number: \n";
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cin >> b;
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cout << "a + b =" << a + b << '\n';
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break;
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case 2: //Subtraction
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cout << "Enter first number: \n";
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cin >> a;
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cout << "Enter second number: \n";
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cin >> b;
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cout << "a - b = " << a - b << '\n';
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break;
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case 3: //Multiplication
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cout << "Enter first number: \n";
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cin >> a;
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cout << "Enter second number: \n";
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cin >> b;
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cout << "a * b = " << a * b << '\n';
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break;
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case 4: //Division
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do {
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cout << "1 - answer as a decimal\n";
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cout << "2 - answer as a fraction\n";
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cout << "3 - answer as a number with a remainder\n";
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cin >> choicee;
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}
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while ((choicee < 1 ) || (choicee > 3));
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switch(choicee)
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{
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case 1: //answer as a decimal
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cout << "Enter first number: \n";
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cin >> a;
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cout << "Enter second number: \n";
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cin >> b;
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cy = a / b;
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cout << "answer = " << cy << '\n';
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break;
- case 2: //answer as a fraction
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int n, m, i = 0;
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int Denom, Num;
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cout << "Enter first number: \n";
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cin >> n;
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cout << "Enter second number: \n";
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cin >> m;
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n = Denom;
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m = Num;
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for (i = n * m; i > 1; i--)
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{
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if ((n % i == 0) && (m % i == 0))
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{
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n /= i;
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m /= i;
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}
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}
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cout << "a=" << n << "/" << m << '\n';
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break;
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case 3: //answer as a number with a remainder
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cout << "Enter first number: \n";
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cin >> a;
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cout << "Enter second number: \n";
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cin >> b;
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q = a / b;
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re = (int)a % (int)b;
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cout << "quotient = " << q << '\n';
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cout << "reminder = " << re << '\n';
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}
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case 5: //Multiplication by a percent
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cout << "Enter first number: \n";
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cin >> a;
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cout << "Enter second number:(percentage) \n";
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cin >> b;
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c = a * (b / 100);
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cout << "answer = " << c << '\n';
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break;
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case 6: //Calculate powers
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double pow(double x, double y);
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cout << "Enter first number: \n";
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cin >> x;
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cout << "Enter the power: \n";
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cin >> y;
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x_to_the_y = pow(x, y);
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cout << "answer = " << x_to_the_y << '\n';
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break;
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case 7: //Calculate a circle
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cout << "Please enter r = \n";
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cin >> r;
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cout << "The area is " << PI * r * r << '\n';
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break;
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case 8: // Calculate an exponential
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cout << "Enter first number: \n";
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cin >> a;
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double pow(double x, double y);
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cout << "Enter second number: \n";
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cin >> x;
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cout << "Enter the power: \n";
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cin >> y;
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x_to_the_y = pow(x, y);
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cout << "answer = " << a * x_to_the_y << '\n';
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break;
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}
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return 0;
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}
