calculator

I am currently learning python through a video tutorial on youtube, and have come up against a formula I cannot seem to grasp, as nothing looks right to me. The basic concept of the excersise is to make a mortgage calculator that asks the user to input 3 pieces of information, Loan Amount, Interest Rate, and Loan Term (years) then it calculates the monthly payments to the user. here is my code: __author__ = 'Rick' # This program calculates monthly repayments on an interest rate loan/mortgage. loanAmount = input("How much do you want to borrow? \n") interestRate = input("What is the interest

I am fairly new to python. I have been asked to create a calculator using only string commands, conversions between int/string/float etc.(if needed), and using functions is a requirement. while and for loops can also be used. The program needs to take an input of the form x/y or x/y/z, where x y z are any positive or negative number. Where "/" can be replaced by addition multiplication and subtraction as well. And where any number of white spaces can exist between operands and operators. This is an idea of what I have so far. I would have a unique definition for +,-,/, and *. I would create a

I'm trying to design a simple calculator for use as a scoreboard for a game or two. Ultimately, I want to be able to select the number of players, have that many score-trackers appear on screen, be able to use a the touch calculator to add or subtract (or divide or multiply) I got it to work for the most part. Currently, it takes the text inputted in the calculator display, adds/subtracts/whatever that to the player score that I choose. The problem is trying to get the numerical keys to show up in the calculator display part. For instance, I want to be able to hit "1" then "0" and have "10"

I'm invoking android native calculator from my app, how do i get result data from it.. means i started native calender like this, after finishing calculation i press back onActivityResult is executed and data returned is null, how to get calculated data.. Help me Intent i = new Intent(); i.setClassName("com.android.calculator2", "com.android.calculator2.Calculator"); startActivityForResult(i, 1); @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if(requestCode == 1){ Log.i("CALCULATOR", "Result Data

Firstly this is not a homework question. I am practicing my knowledge on java. I figured a good way to do this is to write a simple program without help. Unfortunately, my compiler is telling me errors I don't know how to fix. Without changing much logic and code, could someone kindly point out where some of my errors are? Thanks import java.lang.*; import java.util.*; public class Calculator { private int solution; private int x; private int y; private char operators; public Calculator() { solution = 0; Scanner operators = new Scanner(System.in); Scanner operands = new Scanner(System.in); }

I'm trying to do a calculator and all I have to do is make it work with the keyboard. This should work but it doesn't. private void Form1_KeyDown(object sender, KeyEventArgs e) { if (e.KeyCode == Keys.D1) { resultarea.Text = "fgdgd"; //number(1); } .... } Any idea what could have gone wrong? Edit: it's still not working. I figured I might aswell post the whole code. public partial class Form1 : Form { public Form1() { InitializeComponent(); KeyPreview = true; } double first = 0; double second = 0; string op = ""; bool last = true; public void calculate() { double aux = first; first = second;

Hi fellow programmers, I am creating a calculator in C# and I have a string variable math which contains 100 * 5 - 2 How can I display its output which is 498 in my console? My code is this: String math = "100 * 5 - 2"; Console.WriteLine(math); Console.ReadLine(); // For Pause So basically, what my code will give me is the string itself which 100 * 5 - 2 but I want it to give me 498 as a result. Idea about this is pretty much appreciated. Thanks Sudhakar Tillapudi Regular Expression evaluation can be done using DataTable.Compute method (from MSDN ) : Computes the given expression on the