metric decimal places

SELECT(Case when a. colorder = 1 then d. name else ''end) Table name,A. Serial number of the colorder field,A. name field name,(Case when COLUMNPROPERTY (a. id, a. name, 'isidentity ') = 1 then' √ 'else' end) id,(Case when (SELECT count (*)FROM sysobjectsWHERE (name in (SELECT nameFROM sysindexesWHERE (id = a. id) AND (indid in (SELECT indidFROM sysindexkeysWHERE (id = a. id) AND (colid in (SELECT colidFROM syscolumnsWHERE (id = a. id) AND (name = a. name))))))) AND (xtype = 'pk '))> 0 then' √ '

// KeyPress event: when the control gets the focus and the user presses and releases the key on the keyboard Private void textBox1_KeyPress (object sender, KeyPressEventArgs e) // the text box only accepts numbers and decimal places { // IsNumber: Specifies whether the character at the specified position in the string belongs to the digit category. // IsPunctuation: Specifies whether the character at the sp

Function check (ID ){VaR Re =/^ [0-9] + .? [0-9] * $/; // determines whether a number is a valid regular expression.VaR danjia = Document. getelementbyid ('danjia '+ id). value; // obtain the value of the unit price text box.VaR shuliang = Document. getelementbyid ('shuliang '+ id). value; // obtain the value of the quantity text box.VaR He = Document. getelementbyid ('He '+ id); // obtain the sum text boxIf (! Re. Test (danjia) {// verify whether the unit price is validAlert ("the unit price ha

JQuery controls that input can only input two digits and decimal places (amount), jqueryinput Function num (obj ){Obj. value = obj. value. replace (/[^ \ d.]/g, ""); // clear characters other than "Number" and "."Obj. value = obj. value. replace (/^ \./g, ""); // verify that the first character is a numberObj. value = obj. value. replace (/\. {2,}/g, "."); // only the first one is retained to clear unneces

Public Static voidMain (string[] args) {String str= "86.64466666"; BigDecimal BD =NewBigDecimal (double.parsedouble (str)); System.out.println (Bd.setscale (2, bigdecimal.round_half_up). Doublevalue ()); System.out.println ("================="); DecimalFormat DF =NewDecimalFormat ("#.00"); System.out.println (Df.format (double.parsedouble (str))); System.out.println ("================="); System.out.println (String.Format ("%.2f", double.parsedouble (str))); System.out.println ("================

Only JavascriptCode... But I can understand it... /* Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--> * Created by: Niu Yu* Note: You can only enter numbers in the text box. The disadvantage is that you can enter Chinese characters. Therefore, you must make a judgment when the focus is lost.*/$ (Function (){// Add a keypress to the text box, that is, judge when the keyboard is pressed$ ("# Ctl00_contentplaceholder=txtsumvalue"). keypress

Use js regular expressions to verify positive, negative, and decimal places, and js Regular Expressions The code example is directly attached for reference only. The above is all the content of this article. I hope the content of this article will help you in your study or work. If you have any questions, you can leave a message and share it with us!

function ToDecimal2 (x) {var f = parsefloat (x);if (IsNaN (f)) {return false;}var f = math.round (x*100)/100;var s = f.tostring ();var rs = s.indexof ('. ');if (Rs rs = s.length;s + = '. ';}while (s.length s + = ' 0 ';}return s;}-------Callvar Val;Val=obj[i].value.replace (' [', ') ';Val=val.replace ('] ', ');var arr= val.split (', ');var v1 = toDecimal2 (arr[0]);JS formatted numbers retain 2 decimal places

function Clearnonum (obj) {Obj.value = Obj.value.replace (/[^\d.) /g, ""); Clear the numbers and. Characters outside ofObj.value = Obj.value.replace (/\.{ 2,}/g, "."); Keep only the first one. Remove the extraObj.value = Obj.value.replace (".", "$#$"). Replace (/\./g, ""). Replace ("$#$", ".");Obj.value = Obj.value.replace (/^ (\-) * (\d+) \. ( \d\d). *$/, ' $1$2.$3 ');//Only two decimals can be enteredif (Obj.value.indexOf (".") Obj.value= parsefloat (Obj.value);}}Onkeyup= "Clearnonum (This)"1.

Import Java.text.DecimalFormat; Import Java.math.RoundingMode; class text{ publicstaticvoid main (String args[]) { new DecimalFormat (); Formater.setmaximumfractiondigits (2); Formater.setgroupingsize (0); Formater.setroundingmode (Roundingmode.floor); System.out.println (Formater.format (123456.7897456));} }Java retains two decimal places (not rounded)

>>> a = 1>>> B = 3>>> print (A/B) 0 >>> # method one: ... print (Round (A/b,2 0.0>>> # method two: ... print (Format (float (a)/float (b), " .2f ' ') 0.33>>> # method Three: ... print ( %.2f " % (A/b) 0.00>>> Python retains two decimal places

1 //1, as long as the output results can be used the following methods:2 DoubleX1 = 0.026;3System.out.println (String.Format ("%.2f", X1));4 //Results: 0.035 //2. Using Data conversion (4 methods)6 //programme One:7Get_double = (Double) (Math.Round (result_value*100)/100.0)8 //Scenario Two:9DecimalFormat DF =NewDecimalFormat ("#.##");TenGet_double =double.parsedouble (Df.format (Result_value)); One //Programme III: Aget_double = double.parsedouble (String.Format ("%.2f", Result_value)); - //Prog

function FormatNumber (num) {if (IsNaN (num)) {return 0;} else {var index = (num + ""). IndexOf ('. ');if (index >= 0) {var arr = (num + ""). Split ('. ');if (Arr.length > 1) {if (arr[1].length >= 2) {if (Arr[1].charat (0) = = ' 0 ' arr[1].charat (1) = = ' 0 ')return arr[0];else if (arr[1].charat (0) = = ' 0 ' arr[1].charat (1)! = ' 0 ')return arr[0] + "." + Arr[1].charat (0) + arr[1].charat (1);else if (Arr[1].charat (0)! = ' 0 ' arr[1].charat (1) = = ' 0 ')return arr[0] + "." + arr[1].chara

Direct interception of the number of digits, not roundingFor example2→2.002.3→2.302.321→2.322.328→2.32The code is as follows:function Changetwodecimal_f (x) { var f_x = parsefloat (x); if (IsNaN (f_x)) { return 0; } var f_x = Math.Round (x*100)/100; var s_x = f_x.tostring (); var pos_decimal = S_x.indexof ('. '); if (Pos_decimal 　　JS forced to retain two decimal places, less than 0

onlynumber.html test code: The above code content is simple to introduce the Limit text box can only enter the number | | can only be numbers and decimal places | | Only the knowledge of integers and floating-point numbers, hope to be able to help everyone!

public static double round(double value, int scale,int roundingmode) { BigDecimal bd = new BigDecimal(value); bd = bd.setScale(scale,roundingmode); double d = bd.doubleValue(); bd = null; return d; } Scale indicates the number of decimal places, and roundingmode indicates the trade-off method, such as rounding. The value of roundingmode is as follows: ROUND_CEILINGRounding mode to round towards positive inf

JavaScript in the multiplication of floating-point numbers, there will be a number of decimal places.This is because in the operation of the first floating-point number into binary after the operation, but some decimal in the binary code after the infinite loop, resulting in the calculation of errors, and other into the language has similar problems.Reason explanation reference since Baidu knows:For example

Originally the small program needs a limit text box input as a number, and retain the effect of up to 2 decimal places, the example found on the internet feel a bit cumbersome, wrote a. The code is simple, and is mainly handled by the regular group matching feature: // Check input text, limit only to numbers and numbers with up to 2 decimal

Java keeps a double of two decimal places in a multi-method Java reserved Two-bit decimal mport Java.text.DecimalFormat; DecimalFormat DF=NewDecimalFormat ("##### #0. XX"); DoubleD1 =3.23456 DoubleD2 =0.0;DoubleD3 =2.0;d F.format (D1); Df.format (D2); Df.format (D3); 3 results were:3.230.00 2.00java reserved Two-bit decimals problem: Way One: RoundingDoublef =11

situation, accurate to the * decimal point after 10 digits, after the number rounding, rounding mode using Round_half_even * @param v1 * * @param v2 * Return two parameters of the merchant/public static double divide (double v1, double v2) {Return Divide (v1, v2, Default_div_scale); /** * provides (relative) precise division operations. When it occurs, the scale parameter refers to the fixed precision, and the subsequent digits are rounded up.