bdi calculator

#!bin/bash# Simple Calculator #author:tianzhaogao (e-mail:[emailprotected]) num1=initnum2= initcal=initecho "Welcome to Tian Shao Simple Calculator" read-t30-p "NUM1:" num1checknum1=$ (echo " $num 1 "|sed ' s/[0-9]//g ') while[-z" $num 1 "-o-n" $checknum 1 " ]dowhile[-z "$num 1" ]doecho "Error!theinputingcannot" beempty! " read-t30-p "NUM1:" num1checknum1=$ (echo "$num 1" |sed ' s/[0-9] G ') donewhile[-n "$

Today, I simply tried out Java programming and wrote a short calculator that contained only +,-,*,/. Today, make a brief summary of the calculator.First, the calculator is divided into input, calculation, output 3 links, the first to introduce the next input link.Input:We need to tap 2 numbers to calculate from the keyboard, and an operator for an operation. The calculated number is temporarily set to int i

When editing a document in Excel, you sometimes need to calculate some data value (subtraction may be used), generally we are click "start → program → attachment" and then click "Calculator", if each time this operation is very troublesome. In fact, we can add the calculator directly on the Excel toolbar , as follows. Open Excel, click Tools (T) On the View menu, click Custom (c), and then click the comman

#-------------------------------------------------------------------------------------# @ File: Calculator. py# @ project: blog# @ time : 2018/3/17 20:14# @ Author: Liu yang# @ blog: www.liuyang1.club# @ email: [emailprotected]#--------------------------------- ---------------------------------------------------# Encoding Format #-*-coding:utf-8-*-# python version # #!/usr/bin/python3import Reexprs = ' # expression sum = 0 # result flag = ' new ' # Ca

QQ Input Method calculator function how to use When you talk about calculators, the first thing you think about is the calculator that comes with the Windows system. You can open it from the "attachment" of the Start menu, or you can open it by running the Calc command. QQ Input Method QQ Input Method However, we need to calculate some values in the input process, open the system

In fact, this Android computer, all the backstage ideas and "C # calculator Code" is exactly the same. The Win form program is ported to Android, from C # to Java in fact, because the basic syntax is very similar, the only difficulty is the Android XML layout part, unlike C # forms can be directly dragged.Or a calculator that can complete the basic arithmetic as follows: Set the appropriate font for the

Brief introduction In this article, I'll show you how to parse and compute a arithmetic expression like a general-purpose calculator. When we're done, we'll get a calculator that can handle expressions like 1+2*-( -3+2)/5.6+3 style. Of course, you can also expand it more powerfully. My intention is to provide a simple and interesting course to explain grammar analysis and formal grammar (compiler principl

Body, Div, input {font:12px Arial;} . Calculatorbutton {Text-align:center;width:73px;} . calculatorbutton2 {Text-align:center;width:154px;}*+html. Calculatorbutton2 {width:157px;} #calculator. Buttonarea {padding:3px;Border-color: #455690 #a6b4cf #a6b4cf #455690;Border-style:solid;border-width:1px;} #calculatoroutput {padding:2px; BORDER:2PX inset; margin:2px;} #topbar {Position:absolute;Border-right: #455690 1px solid;Border-top: #a6b4cf 1p

This example describes the code for JavaScript to write a simple calculator. Share to everyone for your reference. Specifically as follows:The screenshot of the running effect is as follows: The specific code is as follows JS Code: A simple calculator is the way to achieve, you can also use JavaScript to write a calculator, hope to help

Calculator is a lot of programming beginners have done, starting from the simplest console program, input values, input operators, and then enter a value, to get a result. The interface is basically modeled on the Windows operating system calculator, through the button input values and operators, and then give the results of the operation. Can you directly enter an expression, or you can calculate several e

When editing a document in Excel, you sometimes need to calculate some data value (subtraction may be used), generally we are click "start → program → attachment" and then click "Calculator", if each time this operation is very troublesome. In fact, we can add the calculator directly on the Excel toolbar, as follows. Open Excel, click Tools (T) On the View menu, click Custom (c), and then click the command

Using MFC to do a calculator is very easy, we all think that using the SDK is very difficult, but I think as long as your thinking is correct, do it is as handy. Because the SDK does the project also has the law to be able to seek, is establishes the frame and then carries on the message processing to the frame. So I learn VC + + one months to make up my first small program, here and you VC enthusiasts Exchange and exchange. Before you make a

Tags:. SH floating-point separators should calculate bar integer ACE SpecialUse Shell to write a simple calculator, you can implement add, subtract, multiply, divide operation, if the script name is 1.sh, execute example:./1.sh 1 + 2#!/bin/bashif[$#-ne3]thenecho "The number of parameters should be 3, for example: $01 +2 "echo" when using multiplication, you need to add the caret, for example: $01\*2 "exit 1;finum1= ' echo$1|sed ' s/[0-9. G ' if[-n "$n

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 simple calculator c

The built-in calculators in windows are also quite a lot used, but basically they all do some simple addition, subtraction, multiplication, division, and frankly speaking, I didn't even know the difference between Ce and C keys before, let alone those MR/MS/m +/m-/MC. With a learning mood, I opened the calculator in Windows 7, which is extremely helpful, and of course Baidu/Google. Unexpectedly, a brand-new world emerged in front of me. This

Do you know what a Linux calculator is? This very advanced application technology will be explained by me very much. Where is the Linux calculator NB? Next I will introduce the unlimited field of the Linux calculator. 19 -- bc Linux Calculator [Root @ CentOS4 ~] # Bcbc 1.06 Copyright 1991-1994,199 7, 1998,200 0 Free S

# Include # Include Const int maxstacksize = 50;Typedef double datatype; Class Stack{PRIVATE:Datatype stacklist [maxstacksize];Int top; Public:Stack (void ); Void push (const datatype item );Datatype POP (void );Void clearstack (void ); Datatype PEEK (void) const; Int stackempty (void) const;Int stackfull (void) const;}; STACK: Stack (){Top =-1;} Void Stack: Push (const datatype item){If (Top = maxstacksize-1){Cerr Exit (1 );} Stacklist [++ top] = item;} Datatype Stack: Pop

This article mainly introduces the calculator implemented by PHP based on the factory mode. The example analyzes the implementation principle and application skills of the php factory mode, which has some reference value, if you need a calculator, refer to the example in this article to describe the calculator based on the factory mode of PHP. Share it with you f