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
This article mainly introduces the PHP division operations rounded rounding, up rounding, down rounding, the use of fractional interception, has a certain reference value, now share to everyone, there is a need for friends can refer to
PHP takes
In Excel tables, the number of digits is processed, and the number of digits you specify is often rounded as needed.
Numeric rounding can be done with the following functions:
Rounding =round (a1,0)
Truncate decimal rounding =rounddown (a1,0)
Ceil is a function for getting a value from the up position; floor is a function for rounding out the decimal places to get a value; round is a function for rounding out. Ceil definition and usage: the ceil () function rounds up to the nearest
Decimal Example:
PHP retains two decimal places and rounded up
Copy Code code as follows:
$n = 0.1265489;
Echo sprintf ("%.2f", $n); 0.13
You can see we used the sprintf function to format the $n%.2f is the target format,
A ceil is a function that gets a value upward;
Floor is the function of rounding out the decimal place to get a value;
Round is a function that is used for rounding.
CeilDefinition and Usage:
The Ceil () function rounds up to the nearest
Ceil is a function for getting a value from the up position; floor is a function for rounding out the decimal places to get a value; round is a function for rounding out. Ceil definition and usage: The ceil () function rounds up to the nearest
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
When processing some data, we hope to use the "Rounding" method, but C # uses the "four homes, six homes, five into two" method, as shown in the following example, the result is obtained using "four homes, six homes, and five into two:
Code
A. Between the officesXiao Ming is an executive who travels a lot, and he will be very happy if he flies from S to f more often than from f to land.Topic idea: Violent sweep again, note the number of SF substring and FS substring in the string, and
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