Hello friend again. I confused by Sum two sample list. I want to only corresponding member be added to each other. You can see the pic. But i cant do that. Do you have solution for that? [IMG_20250101_204901_269] [IMG_20250101_204856_488]

@f.saeedian you will need some kind of zip function [image] lis1 = IN[0] lis2 = IN[1] lis3 = [] for sublist1, sublist2 in zip(lis1, lis2): for i, val2 in enumerate(sublist2): lis3.append([val2 + val1 for val1 in sublist1]) OUT= lis3

Sum only Corresponding Member

Revit

Draxl_Andreas January 2, 2025, 7:27am 9

@rajeshjamariya16

Learning advice - Dynamo

and this community here

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Sum only Corresponding Member

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