Hello, I need to figure out how i can round numbers to the closest value in the set but so that it is always rounded to the smaller value. [image] so if i have 9,55 and possible values are 9,4 and 9,6 so resulting rounded number will be 9,4 and not 9,6

You don’t even need the domains… [image] round to lower.gh (12.7 KB) I think the floor trick by Daniel is the shortest and best answer here.

Round to nearest but always to smaller value

Joseph_Oster January 16, 2023, 10:31am 4

Topic		Replies	Views
Pulling numbers up or down to match a predefined list? Grasshopper windows	6	716	November 9, 2021
Round the value to the nearest 0 or 5 Grasshopper windows	2	97	September 10, 2025
Rounding numbers Grasshopper windows	5	625	May 5, 2021
Round to the nearest decimal (say nearest .125) Grasshopper	12	11244	October 10, 2019
Round the Value to Nearest Ceiling Value of Given List Pufferfish windows	21	2736	June 1, 2021