fx-9860GII TI-83
Intg
On a Casio calculator you can determine the largest integer that does not exceed a value
▷ NUM Intg OPTN F6 F4 F5
or via the catalog as
CATALOG P
INPUT SHIFT 4 Intg F1
Example 1
To determine the largest integer that does not exceed −3.5
▷ NUM Intg OPTN F6 F4 F5 (–) 3 · 5 EXE Intg -3.5 -4
Example 2
To determine the largest integer that does not exceed +3.5
▷ NUM Intg OPTN F6 F4 F5 3 · 5 EXE Intg 3.5 3
Example 3
To determine the largest integer that does not exceed √2 = 1.4142…
▷ NUM Intg √ OPTN F6 F4 F5 SHIFT x² 2 EXE Intg √2 1