complex graphing calculator

650) this.width=650; "src=" http://imga.chrome001.com/article/201603/17/1500273xmhhez0oha4057o.png "border=" 0 " Class= "Shadow" alt= "GeoGebra (Mathematical Graphing Calculator)" style= "border:0px;vertical-align:middle;margin-bottom:0px;"/>Plugin Introduction:Mathematics is an indispensable part of our lives, everywhere will use the mathematics, in the course of learning Mathematics, the ordinary

that invokes the __tostring method of the object to return a string, and echo outputs the string returned by the object . atthis outputs a form waiting for the user's input. -*/ -EchoNewForm ("index.php"); - -/*If the user clicks the Submit button, the result class is automatically loaded and the output*/ -if(isset($_post["Sub"])){ inEchoNewresult (); - } to?> + - the The form.class.php code is as follows: 1 Php2/*3Project: Object-oriented

Main Program Page test.php pageShape abstract Class Shape.class.php pageRectangle Class Rectangle.class.php Page Triangle Class Triangle.class.php page Browser Rectangle page650) this.width=650; "Src=" Http://s4.51cto.com/wyfs02/M00/86/B3/wKioL1fH6jyDX36YAAAlAetgXQU441.png-wh_500x0-wm_3 -wmp_4-s_226034738.png "title=" Firefox _2016-09-01t08-42-48.546z.png "alt=" wkiol1fh6jydx36yaaalaetgxqu441.png-wh_50 "/ >Browser Triangle page650) this.width=650; "Src=" Http://s5.51cto.com/wyfs02/M02/86/B3/wKi

Classic example: Object-oriented Graphing calculator

point need to remove 0if (Self.resultlabel.text.length==1 ![ Title isequaltostring:@ "."] [Self.resultLabel.text hasprefix:@ "0"]) {Self.resultLabel.text = @ "";}Avoid entering decimal points continuouslyif ([title isequaltostring:@.]) {Determine if a string is includedif ([Self.resultLabel.text rangeofstring:@ "."]. length>0) {If it contains a.You can't just point it out. TheReturn}}Display the title in the lableSelf.resultLabel.text = [Self.resultLabel.textstringByAppendingString:title];If y

How to optimize complex report computing with a set calculator (1) Data Source setThere are many examples of how the calculator assists in report computing, but most of the computing difficulties occur before the data enters the report tool, for example, many cases of text computing and SQL assistance listed above are for report development. In addition, some

How to optimize complex report computing by the set calculator (1) Data Source set and report Optimization There are many examples of how the calculator assists in report computing, but most of the computing difficulties occur before the data enters the report tool, for example, many cases of text computing and SQL assistance listed above are for report developme

forIinchLi:ifi = ='+': I=0 Nums= Nums +float (i)returnStr (nums)defSimple (x):#handle without parentheses. returnJia_jian (Cheng_chu (x))defJisuan (x):#Handle the parentheses while '(' inchX:reg= Re.compile (r'\([^\(\)]+\)') Ma=Re.search (Reg, X). Group () result= Simple (ma[1:-1]) x= X.replace (MA, result, 1) returnSimple (x)' 1-2.99 * ((60.2-30 + ( -40/5) * (9-2*5/3 + 7/3*99/4*2998 +10.5 * 568/14))-( -4*3)/(16-3*2) ) '. Replace (' ")print(' your results:') , Jisuan (ss))print('eval

The example of this article for everyone to share the simple implementation of C + + complex calculator specific code, for your reference, the specific content as follows 1. Functions related to calculatorsA, to implement the subtraction, size comparison of multiple complex numbers (including real numbers),B. Implementation of decimal real-system conversion, can

1. Pre-preparation for the parentheses have such a rule:--Only ( can be more than ) the number, at this time at the end of the line complement).--Take the mold |...| cannot be nested. (There is no problem with Casio, because you will get two | Each time you press the modulo key, so you can define their size)The calculator has the following functions:--Basic subtraction: 1+2, 3/4-Power: 3^2--Take the mold: |-2|--Imaginary I:2i--take conjugate, amplitud