digits after decimal

First, create a table code formatCREATE table ( [NOT NULL], ... )Cases:#人员基本信息表CREATE TABLE info//Create tables named info(Xuhao int PRIMARY Key auto_increment,//Build column named Xuhao, data type integer type, set as primary key and self-growing

1. Math function: Manipulate one data and return a result--Take the upper limit ceilingSelect Code,name,ceiling (price) from car;--Lower floorSelect Floor, from car--abs Absolute Value-Pi (), pi, brackets, no need to add anything.--round Rounding

/*The following code is the display width setting for the EMP Table/dept table/salgrade table*/Col empno for 9999;Col ename for A10;Col job for A10;Col Mgr for 9999;Col hiredate for A12;Col Sal for 9999;Col Comm for 9999;Col deptno for 99;Col dname

There are two ways to format a Python string: a percent-semicolon, format-modeThe percent of the semicolon is relatively old, and format is a more advanced way to replace the old way, the two coexist.1, percent of the wayWhen formatting a string,

First, string formattingThere are two ways to format a Python string: a percent-semicolon, format-modeThe percent of the semicolon is relatively old, and format is a more advanced way to replace the old way, the two coexist.1, percent of the way

string FormattingThere are two ways to format a python string:% format character, format mode% Format character%[(name)][flags][width]. [Precision]typecode (name) optional, used to select the specified key Flags are optional, and the values to

PHP has two decimal places, and php has two decimal places. Recently, I am making statistics on this part. There are many data sources related to numbers, Three functions are used to retain the last N digits after decimal places. Next, we will

JAVA notes: common Java class libraries In this article, we will summarize the common class libraries in Java. These classes and methods in the class library are carefully designed, with high running efficiency and quality. These classes and

A summary of four common methods for using integer functions in PHP. Ceil-if the sum is obtained by the first method, floatceil (floatvalue) returns the next integer not less than value. if the value has a decimal part, it goes into one. The type

Original: Format and usage of String.Format in C #String. Several definitions of the Format method:String.Format (String, Object) replaces the format item in the specified String with the text equivalent of the value of the specified Object instance.

Describes how to use PHP to retrieve the entire function. For the powerful ceil -- the sum obtained by the first method indicates that floatceil (floatvalue) returns the next integer not less than the value. if the value has a decimal part, it goes

Explore the rules for using PHP floating point type integer. We often use the need for rounding in actual coding, today, we will introduce in detail some PHP floating point type integer ceil -- one-to-one method integer to illustrate floatceil

This article mainly introduces the use of String.Format in C #, in the case of the form of a more detailed description of the various uses of String.Format format, very practical value, the need for friends can refer to the followingThis example

In the actual development process, often encounter some can not allow users to enter the mobile phone number, the input of the correct judgment of the mobile phone number; Some input boxes can only enter numbers, cannot enter letters or special

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,

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

Hello, C ++ (5) How to output data to the screen, input data from the screen, and read and write files ?, Hello, read/write2.2 Basic Input/output stream After listening to the self-introduction of helloworld.exe, you know that the task of a C ++

If we use the "/" operator for division, we get a decimal value if we encounter a situation that cannot be done. What if I only want to get the integer part?1.round-rounding of floating-point numbersFloat round (float $val [, int $precision])

There are several methods to intercept floating point in php: 1,Float round (float $ val [, int $ precision]) returns the result of rounding val according to the specified precision (number of digits after decimal point. Precision can also be

Float floor (float value) Rounding Returns the next integer not greater than value and rounds the decimal part of value. The return type of floor () is still float, because the float value range is usually larger than that of integer. Copy codeThe