Floor, Ceiling, Walls
A notation table extending floor and ceiling to invented 'walls,' 'camping tent' and 'house' brackets.
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Free for classrooms, worksheets, slides and other non-commercial use under CC BY-NC 4.0, with credit to Ben Orlin.
Cartoon by Ben Orlin, Math with Bad Drawings. https://cartoons.mathwithbaddrawings.com/2021-01-01-floor-ceiling-walls/ (CC BY-NC 4.0)Transcript
[Table: notation / name / example / what it does] ⌊x⌋ floor ⌊5.3⌋ = 5, round down · ⌈x⌉ ceiling ⌈5.3⌉ = 6, round up · [x] walls [5.3] = 0.3, mod 1 · (tent over x) camping tent = 5, truncate · (house around x) house = 5.3, nothing, just looks cute