Share a Tiller hack that took you way too long to figure out. Help someone else skip the struggle!

I’m new at Tiller but a long term spreadsheet nerd…

Reference guides I’ve been collecting:

ArrayFormula is very powerful, but not all functions work inside of it. One thing you can do is replace and/or with math. 0 is false, > 0 is true, so you can use A * B for “and” or A+ B for “or”.