simple tip calculator

Tag:expression calculator calculator #!/bin/bash# by inputting data calculating results expression= '; calculator () {echo "Please enter a number:"; readx;echo "Please enter another number:"; ready ;echo "Please enter operation symbol:"; readsymbol;case $symbol in+) ret= ' expr $x + $y '; expression= "$x + $y"; ;; -) ret= ' expr $x - $y '; expression= "$x-

. ACTIONPUSHCE () if event.key () = = QtCore.Qt.Key_0:self. ACTIONPUSHNUM0 () if event.key () = = QtCore.Qt.Key_1:self. ACTIONPUSHNUM1 () if event.key () = = QtCore.Qt.Key_2:self. ACTIONPUSHNUM2 () if event.key () = = QtCore.Qt.Key_3:self. ACTIONPUSHNUM3 () if event.key () = = QtCore.Qt.Key_4:self. ACTIONPUSHNUM4 () if event.key () = = QtCore.Qt.Key_5:self. ACTIONPUSHNUM5 () if event.key () = = QtCore.Qt.Key_6:self. ACTIONPUSHNUM6 () if event.key () = = QtCore.Qt.Key_7:self. ACTIONPUSHNUM7 () if

Recently I used javascript to write a simple calculator. It seems okay to test it myself. The Code has been commented out. It is very good. I suggest you learn it. Recently I wrote a simple calculator in javascript, and it feels okay to test it on my own. Let's take a look at the interface: The interface is like this

The suffix expression evaluates to Calcsuffix:function () { this.result = []; for (var i = 0; i In fact, in the implementation of the time will find that infix, suffix is just a difficult point, more complex place is the whole calculator state changes (or data changes) In this simple calculator, there are numbers (0-9), oper

The Implements a simple calculator program that requires: implemented using the Jsp+javabean pattern. The Project source code is as follows: File: calculator.jsp The JavaBean code used in this article is as follows: Package cn.zq.domain; public class Calculator {private String firstnum; Private String operator; Private String Secon

Recently I wrote a simple calculator in javascript, and it feels okay to test it on my own. Let's take a look at the interface: The interface is like this, but what is the function? Now it's just a simple standard calculator that can perform addition, subtraction, multiplication, division, and remainder operations. If

Lab questions: Complete a simple computer function in the android simulator. Purpose: Learn how to use common android controls such as text boxes and buttons. Step 1: Create a project Select the SDK version. For example, select 2.3.3. So far, the project has been created. The android project has created a main. XML interface by default. Double-click to open the interface. Adjust the screen size of the interface. The default layout of the

This article mainly introduces the simple triangle and rectangular perimeter area calculator implemented by PHP. The implementation in this article is relatively simple and provides code file download. For more information, see This article mainly introduces the simple triangle and rectangular perimeter area

Python implements a simple arithmetic calculator, python I. Algorithms 1. The main idea of the algorithm is to convert an Infix expression into a Postfix expression, and then use the stack's simple data structure, returns the result of an expression. 2. The detailed description of how to convert a common expression to a suffix expression and how to process a suff

This project course uses the Java language to complete a simple calculator. You will use the Java Swing graphics components and so on. first, the experiment introduction The experiment produced a simple arithmetic calculator that will be developed using Java swing. 1.1 Knowledge points Java Swing Interface Programmin

The examples in this article describe the Java implementation of a simple calculator class. Share to everyone for your reference. as follows: Package chap; Import Java.awt.BorderLayout; Import Java.awt.Color; Import Java.awt.FlowLayout; Import Java.awt.GridLayout; Import java.awt.event.ActionEvent; Import Java.awt.event.ActionListener; Import Java.text.DecimalFormat; Import Javax.swing.JButton; Import

This article mainly introduces the simple triangle and rectangular perimeter area calculator implemented by PHP. The implementation in this article is relatively simple and provides code file download, if you need it, you can use PHP object-oriented knowledge to design a graphical calculator and abstract class knowledg

A small calculator that can calculate the value of a simple mathematical expression is not a compiler, but a knowledge of the compiler is used. I have been reading some compiler stuff recently. Therefore, writing this simplest calculator is an image of the abstract compiler knowledge, it also lays the foundation for adding complicated things-statements. This

("", 10); Mywindow.add (Text1); JButton btn = new JButton ("calculation"); Mywindow.add (BTN); Btn.addactionlistener (this); Mywindow.add (TEXT2); Text2.seteditable (FALSE); Mywindow.setvisible (TRUE); } public void actionperformed (ActionEvent e) {Boolean F = true;str = Text1.gettext ();StringTokenizer st = new StringTokenizer (str, "");int myyear, mymonth, Myday;try {Myyear = Integer.parseint (St.nexttoken ());Mymonth = Integer.parseint (St.nexttoken ());Myday = Integer.parseint (St.ne

The calculator code in this article is very simple and you can easily apply the Web effects to your project. Html First we put an input box and multiple calculator buttons on the Web page. Js Follow the action type: function operator (type) {switch (type) {case "clear": Input.value = "0"; _string.length = 0; /*document.getelementb

I wrote a simple 24-point calculator. Here, the dabentu. commydemo24game24-point calculator came into contact with ajax, but there were still many errors when writing javascript code. Step by step modify the original article address: php: A simple 24-point calculator. Thank

JS Calculator code: [Ctrl + A All SELECT Note: If the need to introduce external JS need to refresh to perform] Description JavaScript eval () function Definitions and usage The eval () function computes a string and executes the JavaScript code in it. return value The value, if any, obtained by calculating the string. Description The method accepts only the original string as a parameter, and if the string argument is not the ori

A simple jQuery calculator implements the continuous computing function. A simple jQuery Calculator only implements a continuous computing Function Use C to implement a simple calculator, which is highly efficient. There is a

To write an application that simulates a calculator, using the Panel and grid layout, add a text box, 10 number buttons (0~9), 4 subtraction buttons, an equal sign button, a purge button, a square root button, a backspace button that asks the calculation formula and results to be displayed in a text box. The implementation effect is shown in the following illustration. Java Simple

A simple web page JS calculator with detailed code interpretation. Through the demo below, we can see that this is a very small js web page calculator. I think it is good to beautify the interface. After all, without any image modification, very nice, and very practical, can complete the basic mathematical calculation. For reference, compile a