Inconsistent Units

30 Sep

There is a seperate post explaining this behavior here:
Revit – Inconsistent Units and how to neutralize them.

Round Function In Formulas 
Values in formulas can be now rounded up or down. For example, when riser height is calculated, one needs the function “round” to find the appropriate value.
ROUND(x)
The round function returns a number rounded nearest to a whole number. It doesn’t take into consideration rounding direction (round up or down). If the number is (for example) from 24.5 to 24.9, the function rounds it to 25. If it is from 23.1 to 23.4, the function rounds it to 23.
Examples:
round ( 23.4) = 23
Round ( 23.5) = 24
Round ( 23.6) = 24
Round (-23.4) = -23
Round (-23.5) = -23
Round (-23.6) = -24
Syntax
The syntax for the round function is: round( number)
number is the number to round.
ROUNDDOWN(x)
“x” is a unitless value that should return the smallest integral value less than or equal to x.
For example:
rounddown ( 23.0) = 23
rounddown ( 23.5) = 23
rounddown ( 23.9) = 23
rounddown (-23.0) = -23
rounddown (-23.5) = -24
rounddown (-23.9) = -24
The syntax for the rounddown function is: rounddown (number)
number is the number to round down.
ROUNDUP(x)
“x” is a unitless value that should return the largest integral value greater than or equal to x.
For example:
roundup ( 23.0) = 23
roundup ( 23.5) = 24
roundup ( 23.9) = 24
roundup (-23.0) = -23
roundup (-23.5) = -23
roundup (-23.9) = -23
The syntax for the roundup function is: roundup (number)
number is the number to round up.
Note that when numbers such as 23.5 are rounded, they can result in either 23 or 24. To produce a stable result, for all the .5 cases, we round to the larger integer. That means that 23.5 is rounded to 24, while -23.5 to -23

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