Day4 calculator, day4
Job: calculator Development
(1) implements addition, subtraction, multiplication, division, and extension priority resolution;
(2) user input 1-2*(60-30 + (-40/5) * (-9-2*5/-3 + 7/3*99/4*2998 + 10*568/14)-(-4*3)/(16-3*2 )) after a similar formula is used, you must parse the (), +,-, *,/, and formula in it and calculate the result, the result must be consistent with the result obtained
the first lesson of C language Simple calculator makingC language has been learning for so long. /* Souvenir C language First lesson simple calculator production */#include void DisplayMenu ();void Add ();void Sub ();void multiply ();void Divide ();void Yushu ();void Jiecheng ();void Leijia ();void Jiechengleijia ();int main (int n){Do{System ("color 2e");System ("CLS");DisplayMenu ();System ("Pause");}whil
The Set calculator assists Java in processing grouping and summarizing structured text, and java structuring
Using Java to group and summarize style files may cause the following troubles:
1. files are not databases and cannot be accessed using SQL. When the grouping and summary expressions change, you can only rewrite the code. To implement flexible expressions, You need to parse and evaluate dynamic expressions by yourself. The programming workload
such as 1-2 * ((60-30 + ( -40/5) * (9-2*5/3 + 7/3*99/4*2998 +10 * 568/14))-( -4*3)/(16-3*2)), the user input must be Self-analysis inside the (), +,-, *,/symbols and formulas, the result of the operation, the results must be consistent with the results of the actual calculator.
Implement subtraction
Meet priority levels
The required knowledge points:
Process Control
Function
function recursion
Regular expressio
JSP implements the calculator function (web edition ),
The code for jsp implementation web page calculator is as follows: there are only two jsp pagesMyCal. jsp is as follows:
MyResult. jspAs follows:
Although the process is simple, it is worth a few.Learning:How to determine whether the input data is a number: use Math. round (form1.num1. value )! = Form1.num1. value to judge;How to get the operation val
The following small series will bring you a javascript simple calculator effect [recommended ]. The editor thinks it is quite good. Now I will share it with you and give you a reference for the final result, such as-2. There is a bug: The result is correct by clicking "%" after an integer, if % is clicked after the decimal point, the result is incorrect! Everything else is normal. Please advise: the input value is of the string type. In JS, how can I
SCalc mini-program version is suitable for beginners. because the focus is not on implementing the specific functions of the calculator, it is mainly to learn the development of mini-programs, so do not care too much about some non-focus issues in order to achieve the computing function, the window object is not supported in the js file and cannot be used ...,
Summary: SCalc mini-program version, suitable for entry, because the focus is not to implem
Simple analysis calculator takes you to get started with the development of small programs, but the focus is on the back
This is a tutorial, not a tutorial.
Can look at the Demo of the operation of the animation, look at what is a thing, GitHub address (https://github.com/dunizb/wxapp-sCalc)
Wxss:
.btnGroup { display: flex; flex-direction: row; flex:1; width:100%; background-color:#fff;}.item { width:25%; display: flex; align-
This article describes how to use only 50 lines of code to implement a calculator written in Python. it mainly uses the PlyPlus library to make the core code very simple. For more information, see
Introduction
In this article, I will show you how to parse and calculate a four arithmetic expression just like a general calculator. When we end, we will get a calculator
This article describes how to create a web calculator using node. js + express. For more information, see
Environment:
Host: WIN10
Express installation:
1. install express-generator
Enter the following command:
npm install -g express-generator
2. install express
Enter the following command:
npm install -g express
3. verify whether the installation is successful
Enter the command: express-V
View help: express -- help
Project creation:
express -e
Compounding Calculator 6.0--release
ObjectiveThis compound interest Calculator version updates, mainly has the following content consummation:
1. Optimized the web version of the page, providing more comfortable and beautiful user embodiment.
2. Added Mobile (Android) app version.
Version information
project name
Total accepted:14291 Total submissions:64507 difficulty:medium Implement a basic calculator to evaluate a simple expression string.The expression string contains only non-negative integers,,, + - * , / operators and empty spaces . The integer division should truncate toward zero.Assume that the given expression was always valid.Some Examples:"3+2*2" = 7 "3/2" = 1 "3+5/2" = 5Note:do not use the eval built-in library function. (M) Basic
Today to talk about the implementation of the calculator, the effect is how, take out your mobile phone calculator to see the know, note that we calculate the number of two and then click the equal sign will be the result, click the operator will also produce results,. This is the 1th need to pay attention to, the 2nd need to note that after the results come out and then click on the number will overwrite t
Basic Calculator IIImplement a basic calculator to evaluate a simple expression string.The expression string contains only non-negative integers,,, + - * , / operators and empty spaces . The integer division should truncate toward zero.Assume that the given expression was always valid.Some Examples:"3+2*2" = 7 "3/2" = 1 "3+5/2" = 5Note:do not use the eval built-in library function.Credits:Special thanks to
Basic CalculatorImplement a basic calculator to evaluate a simple expression string.The expression string may contain open(and closing parentheses), the Plus+or minus sign-,non-negativeIntegers and empty spaces.Assume that the given expression was always valid.Some Examples:"1 + 1" = 2 "2-1 + 2" = 3 "(1+ (4+5+2)-3) + (6+8)" = 23Note: don't use the eval built-in library function.Problem Solving Ideas:Simple calcul
value to be converted in the number display area, or use the calculation result to convert the value. Select the desired number system, the converted result is displayed in the number display area.
In addition, scienceComputingToolYou can perform some function operations,UseDetermine the unit of the operation, enter a value in the number area, select the function operator, and then click "=" to obtain the result.
2. Tips
A. Copy by pressing CTRL + C and CTRL + v.
B. Copy the formula 1024
Simple and Easy-to-use calculator bc in Linux1. About bcBc is an arbitrary precision calculator language. It is usually used as a calculator in linux and is easy to use. It is equivalent to a calculator in windows.2. Supported OperatorsBasic mathematical operations: + addition-subtraction * multiplication/division ^ ex
Compile a simple calculator in JavaScript and write it in javascript.
This example describes how to compile the code of a simple calculator in JavaScript. Share it with you for your reference. The details are as follows:The running effect is as follows:
The Code is as follows:
Js Code:
A simple calculator is implemented in this way. You can also use javascript
A simple calculator implemented by the use of the technology: Chen yuefeng from: http://blog.csdn.net/mailbomb in the actual learning process, often do some small projects, you can learn the comprehensive application of the technology, gain a certain sense of accomplishment and exercise logical thinking. Functions of this calculator code: 1. Implement four arithmetic operations. Division implements integer
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.