round to 3 decimal places calculator

Example 1Float f = 34.237323f;BigDecimal B = new BigDecimal (f );Float f1 = B. setScale (2, BigDecimal. ROUND_HALF_UP). floatValue ();System. out. println (f1 );Method 2:Float f = 34.232323;BigDecimal B = new BigDecimal (f );Float f1 = B. setScale (2, BigDecimal. ROUND_HALF_UP). floatValue ();// B. setScale (2, BigDecimal. ROUND_HALF_UP) indicates rounding and retaining two decimal placesMethod 3:Float size

SELECT count (expscore) as count, sum (expscore) as sum, max (expscore) as max, min (expscore) as min, round (Avg (EXPSCORE) * 1000)/1000 as avg, a. EXPACTID, B. teachercode, B. expname, c. classid, a. scoresubmit, a. scoreverify, c. schoolid FROM expscore a, EXPACTIVATED B, schoolmajorclass c Where a. expactid = B. expactid and B. schclassid = c. schclassid Group by a. EXPACTID, B. teachercode, B. expname, c. classid, a. scoresubmit, a. scoreverify, c. schoolid This is an SQL statement created

Document directory 1. scanf function-related applications 2. Retrieve decimal places from a string of characters 3. Copy two files 4. pointer operations 5. stdout, stdin, stderr 6. sscanf and sprintf Functions 1. scanf function-related applications # Include Int main () { Int I = 0; Float F; Char C1, C2; // Scanf ("% 3d % F", I, F); // 3D indicates t

1. Only ask to keep n bit not four 5 infloat F = 0.55555f;int i = (int) (f * 100);f = (float) (i*1.0)/100;2. Keep n bits, rounded.Decimal d= Decimal. Round (decimal. Parse ("0.55555"), 2);3. Keep n-bit roundingMath.Round (0.55555,2)4, keep n-bit roundedDouble dbdata = 0.55555;String str1 = Dbdata. ToString ("F2");//fn reserved n bits, rounded5. Keep n-bit roundin

Town Field Poem:The Pure Heart sentiment wisdom language, does not have the world name and the benefit. Learn water under the hundred rivers, give up arrogant slow meaning.Learn to have a small return to feed root, willing to cast a conscience blog. Sincere in this writing experience, willing to see the text to inspire.——————————————————————————————————————————Code1 DOCTYPE HTML>2 HTML>3 Head>4 Metahttp-equiv= "Content-type"content= "text/html; ch

The Java backend retains two decimal places1. (double) (Math.Round (sd3*10000)/10000.0);this keeps the 4-bit( Double) (Math.Round (sd3*100)/100.0);this keeps the 2 bits.2. Another approachimport Java.text.DecimalFormat;DecimalFormat df2 = new DecimalFormat ("###.00");DecimalFormat df2 = new DecimalFormat ("###.000");System.out.println (Df2.format (Doube_var));The first one is 2 bits and the second is 3 bits

In the custom textbox control, if only numbers are allowed, consider the following three situations:Characters entered by normal buttons, including Spanish and Chinese charactersPress the keyboard shortcut key to paste the text, that is, ctrl + v.Click the mouse operation in the context-related menu to paste the text, that is, the "paste" operation.Most of the articles of the same type have considered only 1st cases and ignored 2nd and 3 com

This article describes how to format the amount with js and set the number of decimal places to be retained. For more information, see The Code is as follows: // Formatted amount s is the parameter to be formatted (float type), and n is the number of digits reserved after the decimal pointFunction formatMoney (s, n ){N = n> 0 n S = parseFloat (s + ""). rep

It is required to use decimal places in the unit of amount, weight, length, etc. If you only need to retain two places // By default, two digits are retained (No rounding is performed)Double sumpric = 0.335333;String str1 = string. Format ("{0: f}", sumpric ); // Follow the rounding international standardsDouble sumpric = 0.335333;Math. Round (0.333333, 2 );

Double mynumber = 321.4321; String mystring = string. Format ("{0: 0. ##}", mynumber ); Console. writeline (mystring ); String operation Only two decimal places are allowed. Double d1 = 3.1415926;String strd1 = d1.tostring ("F2 ");If there are three digits, It is F3.String STR = "123abc456 "; Int I = 3; 1. Take the first I character of the string. STR = Str. subs

1 import Java.math.BigDecimal;2 import Java.text.DecimalFormat;3 import Java.text.NumberFormat;4 Public classFormat {5 Doublef =111231.5585;6 Public voidM1 () {7BigDecimal BG =NewBigDecimal (f);8 DoubleF1 = Bg.setscale (2, bigdecimal.round_half_up). Doublevalue ();9System. out. println (F1);Ten } One /** A * DecimalFormat conversion is the easiest - */ - Public voidm2 () { theDecimalF

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

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

>>> 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

4 methods, all rounded, for example:ImportJava.math.BigDecimal; ImportJava.text.DecimalFormat; ImportJava.text.NumberFormat; Public classFormat {Doublef = 111231.5585; Public voidM1 () {BigDecimal bg=NewBigDecimal (f); DoubleF1 = Bg.setscale (2, bigdecimal.round_half_up). Doublevalue (); System.out.println (F1); } /*** DecimalFormat conversion is the easiest*/ Public voidm2 () {DecimalFormat DF=NewDecimalFormat ("#.00"); System.out.println (Df.format (f)); }

JS retains two decimal places. The example is rounded down and the toFixed () function is used () Example of retaining two decimal places in php: Rounding 1. number_format$ Number = 1234.5678;$ Nombre_format_francais = number_format ($ number, 2 ,,,);// 1 234,57$ English_format_number = number_format ($ number, 2

Exercise Source: Python for BIOLOGISTS:A complete programming course for beginner 1 #!/bin/python2 #calculate the at content of a DNA seq3 4 defGet_at_content (DNA, Sig_figs = 2):#sig_figs=2 is the default parameter Sig_figs5Length =Len (DNA)6A_count = Dna.upper (). Count ('A')#Use str.upper () and Str.count () method7T_count = Dna.upper (). Count ('T')8At_content = (A_count + t_count)/length9 returnRound (at_content, Sig_figs)#using return in many cases is better than printTen

Java retains two decimal places 4 waysMethod One: The Format method of string (recommended)Double F = 111231.5585;System.out.println (String.Format ("%.2f", f));Method Two: The Format method of DecimalFormatDouble F = 111231.5585;DecimalFormat df = new DecimalFormat ("#.00");System.out.println (Df.format (f));Here's what you can do without looking at itMethod Three: The Setscale method of BigDecimalDouble F

The topic requirement is a high-precision division, which requires the retention of n decimal places (rounding), and the display of 0 is removed when the integer part is 0 o'clock1 ImportJava.math.BigDecimal;2 ImportJava.util.Scanner;3 4 Public classBD5 {6 Public Static voidMain (string[] args)7 {8Scanner Scanner =NewScanner (system.in);9 while

1,Math.Round (0.333333,2);//According to the international standard of Rounding 2, double dbdata=0.335333; String Str1=string.format ("{0:f}", dbdata);//default is to reserve two bits 3, float i=0.333333; int j= (int) (i * 100); i = j/100;4,decimal. Round (decimal. Parse ("0.3333333"), 2) 5, private System.Globalization.NumberFormatInfo NFI = new System.Globaliza