MobileRead Forums - View Single Post - Template: sum of multiple integers from other columns

chaley · 01-17-2021, 09:18 AM

In the next version of calibre (5.10 probably) add() and multiply() accept a variable number of arguments. Thus, once released your solution can be written as

Code:

program:
    floor(add(field('#story'), field('#characters'), field('#writing'), field('#ending')))

To head off questions: I changed add() and multiply() because the operations are commutative, giving the same answer regardless of order of evaluation, while subtract and divide are not. I don't want to worry about guaranteeing the order of evaluation within the function.

01-17-2021, 09:18 AM	#4
chaley Grand Sorcerer Posts: 12,447 Karma: 8012886 Join Date: Jan 2010 Location: Notts, England Device: Kobo Libra 2	In the next version of calibre (5.10 probably) add() and multiply() accept a variable number of arguments. Thus, once released your solution can be written as Code: program: floor(add(field('#story'), field('#characters'), field('#writing'), field('#ending'))) To head off questions: I changed add() and multiply() because the operations are commutative, giving the same answer regardless of order of evaluation, while subtract and divide are not. I don't want to worry about guaranteeing the order of evaluation within the function. Last edited by chaley; 01-17-2021 at 06:00 PM. Reason: Correct mistaken function name