1.1.1 The definition of the decimal point for the item unit
As shown in the following illustration, the transaction code cuni the unit and the decimal point of the item, and the decimal point can be set at icon 1, Icon 2.
Icon 1: Represents the
The number of decimal places in a repeating prime number must be smaller than that in the prime number itself.
Generally, decimal places with the reciprocal of prime numbers are complex. Because the reciprocal of prime numbers is also a
Xcart the number of decimal places by default is 2 bits, sometimes need to change the number of bits as needed; At first, the number of bits in the data type in the database can be changed, and the result is that Xcart is limited in the program,
public static void Main (string[] args) { //1. First multiply and then round, then divide; Double d = 62.31060027198647; Double D2 = Math.Round (d*100)/100.0; System.out.println ("Divide by math": "+ D2); 2.
How do I query a field for a few small numbers?MySQL database:Through the following SQL can be found out, there are 2 col*100, there are 3 col*1000, one analogy;Select * from where real_quantity*-Floor (real_quantity*1000 >0Note: Floor: The
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_
Decimal (P[,s]), where p is precision and S is the number of decimal digitsP (Precision) The total number of decimal digits that can be stored, including the number of digits to the left and right of the decimal points (Number of decimal places) the
In the project, you use the truncation method to take two digits after the decimal point, so the following methods are written:
Copy Code code as follows:
Truncates a decimal value by the specified number of decimal places
Decimal
About several Oracle functions that handle the number of decimal places ()1. Rounding of several decimalsSelect Round (1.2345, 3) from dual;Results: 1.2352. Reserved two decimal places, onlySelect Trunc (1.2345, 2) from dual;Results: 1.23Select
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
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
Recently, I found a Bug in my project and killed the process. I checked it and found it was the most inconspicuous place. I will record it here.
First look at the following code
# Include # include using namespace std; int main () {char aa [1024]
When Hibernate's ReverseEngineering is used to automatically generate the Hibernate ing file, two class files are generated because the view does not have a primary key, one of the c
When Hibernate Reverse Engineering is used to automatically
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
When processing the data of the currency type, we often encounter the display of the data of the currency type. For example, on a Chinese machine, the display format is always ¥50,200.00,
If we want to display a format like $50,200, two points are
Recently, I found a bug in my project and killed the process. I checked it and found it was the most inconspicuous place. I will record it here.
First look at the following code
# Include # include using namespace STD; int main () {char AA [1024]
Sometimes you need to reserve a specified number of digits for a specific number that contains a decimal point, such as "123.123600".This is implemented as a function in the database as follows: Use [Database name]GO/** * * *
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