In math. when performing data processing, round often encounters a situation where 81.25 retains a decimal number, and the value is 81.2. It is searched by material and math. the round rounding algorithm adopts the banker's rounding algorithm, which
English documents:
round
(number[, ndigits])
Return The floating point value
number rounded to
ndigits digits after the decimal point. If
ndigits is omitted, it returns the
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
The round () method returns the decimal point of a numeric value rounded to n digits.
Grammar
The following is the syntax for the Round () method:
Round (x [, N])
Parameters
X-This is a numeric value that represents the value that needs to be
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
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
Fix (number) and Int (numbers) are integral parts of the returned digits.
When number is positive, the two return the same value. For example: Fix (3.6) =3,int (3.6) = 3.
When number is negative, Fix removes the decimal part directly, and INT
Round
See
Returns the number rounded up by the specified number.
Syntax
Round(Number,Num_digits)
Number.
The number of digits specified by num_digits.
Description
If num_digits is greater than 0, it is rounded to
The round function can be rounded, it is a rounding function, the following is a look at the syntax of round:1 Math.Round (number)Let's look at a few examples:
The code is as follows
Copy Code
1 document.write
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)
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