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# ROUNDDOWN function

Rounds down a number while keeping a specified number of decimal digits.

This function is equivalent to the TRUNC function.

The rounding method used by this function is known as rounding towards zero. The magnitude of the resulting number will always be less than or equal to the original number.

### Sintaxis

ROUNDDOWN(Number [; Count])

Number: The number to be rounded down.

Count: Optional parameter that defines the number of decimal places to be kept. The default value is 0 (zero).

Use negative values for Count to round the integer part of the original Number. For example, -1 will round down the first integer number before the decimal separator, -2 will round down the two integer numbers before the decimal separator, and so forth.

En LibreOffice, el parámetru Cantidá ye opcional, ente qu'en Microsoft Excel ye obligatoriu. Cuando un ficheru ODS contién un usu de REDONDIARINF ensin el parámetru Cantidá y el ficheru lu esportes a los formatos XLS o XLSX, va amestase l'argumentu n'automático, con un valor de cero, pa caltener la compatibilidá.

### Exemplos

=ROUNDDOWN(21.89) returns 21. Note that this example uses the default value for Count which is 0.

=ROUNDDOWN(103.37,1) returns 103.3.

=ROUNDDOWN(0.664,2) returns 0.66.

=ROUNDDOWN(214.2,-1) returns 210. Note the negative value for Count, which causes the first integer value before the decimal separator to be rounded towards zero.

Temes rellacionaos

ROUNDDOWN wiki page.

TRUNC function

Funciones matemátiques