The function is

–––
floor('Number field')
–––

Birger

Thanks for hte "floor"...  The manual is incorrect.. https://ninoxdb.de/en/manual/calculations/mathematical-functions

It says 

round( x ) rounds x to the nearest whole number.

round up( x ) rounds x up.

round down( x ) rounds x down.

I am tryig to get a round down function to work. I want the interger part of a calculation (the characteristic) , not sure what floor is giving me

My work around has been this so far:

round('Formula total/11' - 0.51)

I am trying to get a round down function to work. I want the interger part of a calculation (the characteristic) , not sure what floor is giving me

My work around has been this so far:

round('Formula total/11' - 0.51)

From the manual:

round(x) – Rounds a number to the nearest integer.
round(x, digits) – Rounds a number with the given amount of digits.
|  round(1.234, 2) => 1.23
|  round(12345.987, -2) => 12300

floor(x) – Rounds a number DOWNWARDS to the nearest integer.

ceil(x) – Rounds a number UPWARDS to the nearest integer.