The main function of Excel's ROUNDDOWN function is to round down according to the specified digit position
This article introduces the formula syntax and usage of the ROUNDDOWN function in Microsoft Excel.
ROUNDDOWN function function
The ROUNDDOWN function is used to round numbers close to zero and down (the direction in which the absolute value decreases). That is to say, the calculation retains the value after removing the specified number of bits (the result must be equal to or less than the original value).
ROUNDDOWN function format
ROUNDDOWN(number,num_digits)
Translated into the vernacular format:
ROUNDDOWN(目标单元格,要保留位数)
Parameter Description
number: Specify the value or the cell reference where the value is located
num_digits: The position of the number of digits to be rounded down
Notes on the use of ROUNDDOWN function:
①. The function TRUNC, which is similar to the ROUNDDOWN function, both perform the same operation. However, the difference is that the "digit position" parameter of the ROUNDDOWN function cannot be omitted and must be specified; while the TRUNC function can be omitted.
②. If num_digits is greater than 0, then round down to the specified decimal place
③. If num_digits is equal to 0, then round down to the nearest integer
④. If num_digits is less than 0, round down to the left of the decimal point.
Example of ROUNDDOWN function:
Remarks:
1. Regarding the description of the reserved digits, different reserved digits have different meanings, as shown in the following table:
2. Explanation of "digit position"
Indicates the distance from the position of the decimal point to the digits. From the decimal point to the left, it is represented by a negative number, and from the decimal point to the right, it is represented by a positive number, as shown below:
·: Indicates a decimal point
○ ○ ○ · ● ● ●
-2 -1 0 1 2 3
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