In SQL Server, Division occurs when the divisor is 0 and two decimal places are retained. The statement is as follows:
Select case when num = 0 then 0 else convert (decimal (210.343),/num) end as result from tabnumber
Select
[Carrier] As 'carrier group ',
Count (*) as 'zhangshu ',
'0' as 'ticketing efficiency ',
Sum (cast (sumprice as INT) as 'face price ',
S
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 = 34.236323;DecimalFormat fnum = new Decimal
04: The output retains 3 decimal places floating point number#include
Total time limit:
1000ms
Memory Limit:
65536kB
Describe
Reads a single-precision floating-point number, leaving 3 decimal places to output the floating-point number.
Inpu
Today, I found Baidu and Mu. I checked Google and Mu. I asked my friend and told me that I had done it myself and finally got it. Haha
Everyone has noticed that, in fact, our law knows that it is wrong:
Note:
The function used to retain two decimal places in Javascript is tofixed (2)
However, when this function is combined with the "%" sign, it will be confused and will not be heard. Please refer to the
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 common operations.Only
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 that only three digits are allowed.
// Printf
Pure decimal representation-------------------------------------------------Next we will explain how to convert a pure decimal number to a hexadecimal number. For a pure decimal number, such as 0.0456, We need to normalize it to the type of 1. xxxx * (2 ^ n). The following formula is required for the n corresponding to the pure
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 );
JQuery restricts that only numbers and decimal places can be entered in the text box.
This article mainly introduces JQuery's method of limiting the number and decimal point of a text box.
The Code is as follows:
$ (Function (){
/* JQuery restricts that only numbers can be entered in the text box */
$ (". NumText"). keyup (function (){
$ (This). val ($ (this).
Tags: function conversion complete RAC plain char CAs string middleIn the banking, financial and other sensitive to the digital requirements of the system, the digital display generally have strict requirements.This is a requirement, title, which requires numbers to be displayed in two decimal places, and if there are no decimals, force the display to 0.For example:123.4 Display as 123.4012 Display as 12.00
In the banking, financial and other sensitive to the digital requirements of the system, the digital display generally have strict requirements.This is a requirement, title, which requires numbers to be displayed in two decimal places, and if there are no decimals, force the display to 0.For example:123.4 Display as 123.4012 Display as 12.000 Display as 0.00I thought this was a relatively simple question, a
Introduction: Jstl preserves the two-bit decimal implementation method import the following tags at the beginning of the JSP:
JSTL reserved two-bit decimal implementation method
Import the following tags at the beginning of the JSP:
"http://java.sun.com/jsp/jstl/fmt" prefix="fmt "%> The value passed in from the background is deltmain. The pattern here is equivalent to DecimalFormat."${
Convert js numbers to float and take N decimal places:
========================================================== =
All variables in javascript are weak types, and all variables are declared as var, which is not as convenient as java during the type conversion process. It uses parseInt, parseFloat (variable) type conversion. Note: There is no parseDouble (variable) type conversion, because in javascript,
Http://www.cnblogs.com/furenjun/archive/2010/07/13/1776484.htmlDouble dvalue = 95.12345;int ivalue = 10000;string strvalue = "95.12345";string result = "";result = Convert.todouble (Dvalue). ToString ("0.00");//two digits after the decimal point, with a result of 95.12result = Convert.todouble (ivalue). ToString ("0.00");//10000.00result = Convert.todouble (strvalue). ToString ("0.00");//95.12result = Convert.todouble (Dvalue). ToString ("P");//Get a
Keep Two decimal placesSystem.out.println (Double.parsedouble (String.Format ("%.2f", 55.5454545454));Keep Three decimal placesSystem.out.println (Double.parsedouble (String.Format ("%.3f", 55.5454545454));Keep Four decimal placesSystem.out.println (Double.parsedouble (String.Format ("%.4f", 55.5454545454));Note that the String.Format passed in must be a number,
JS retains two decimal places. The example is rounded down and the toFixed () function is used ()
Example of retaining two decimal places in php: Rounding
1. number_format$ Number = 1234.5678;$ Nombre_format_francais = number_format ($ number, 2 ,,,);// 1 234,57$ English_format_number = number_format ($ number, 2
Today, when processing data, the foreground interface amount needs to retain two decimal places, so only JavaScript can be used for interception.var regex =/([0-9]+\.[ 0-9]{2}) [0-9]*/;var Localmoney = 6002.3310;Localmoney = localmoney.tostring (). Replace (Re, "$");In this way, the amount to be 6002.33------------------------------------------------------------If it's a background C # intercept, it's easie
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
Note: Source Network
Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--> -- ========================================================== ============================== -- Lists All SQL Server tables, field names, primary keys, types, lengths, decimal places, and other information. -- Run in the query analyzer. -- ========================================
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