SQL Server two ways to keep several decimals
The float Momey type in the database will be accurate to many decimal places. But sometimes we don't need to be that precise, for example, to only be accurate to two significant digits.Solve:1. Use
This article is the official HTML5 training course for h5edu institutions, mainly introduces: JavaScript intensive tutorial--javascript Math (Arithmetic) object The function of the Math object is: Perform common arithmetic tasks. Round () How to use
Reprint Source: HTTP://BLOG.CSDN.NET/YF210YF
Matlab takes the whole function: fix, floor, ceil, round. The rounding function is useful in programming. First, take the whole function 1. To 0 rounding (truncated rounding)
fix-to 0 rounding (Round
Original address: http://blog.csdn.net/skyandcode/article/details/23523815Problem:The float Momey type in the database will be accurate to many decimal places. But sometimes we don't need to be that precise, for example, to only be accurate to two
PHP rounding, rounding, round function Use example, rounding round
Decimal Example:
PHP reserved two decimal places and rounded
Copy the Code code as follows:$n = 0.1265489;Echo sprintf ("%.2f", $n); 0.13
As you can see, we used the sprintf
The Number_format () function formats numbers by using thousands of groupings. It returns the formatted number.
Note: The function supports one, two, or four parameters (not three).
This article mainly introduces the method that PHP uses
Math.Round (45.367,2) //Returns 45.37math.round (45.365, 2) // Returns 45.36C # round () is not our Chinese understanding of rounding, is the foreigner's rounding, is in line with the IEEE standard rounding, specifically four six into,
Example of PHP rounding, rounding, and using the round function. Example of using the PHP rounding, rounding, and round functions, and rounding the round decimal places: PHP keeps two decimal places and rounds them to copy the code as follows: $ n0.1
Decimal Example:
PHP reserved two decimal places and rounded
Copy the Code code as follows:$n = 0.1265489;Echo sprintf ("%.2f", $n); 0.13
As you can see, we used the sprintf function to format the $n%.2f is the target format, where 2 means that two-
Oracle decimal point retention problem
2013-03-03 11:45:49 I'd like to say two shm2008520
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Oracle decimal point retention problem If you need to use the Oracle decimal
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