Golvfunktion
Golv rundas alltid nedåt mot negativ oändlighet, särskilt viktigt för negativa tal.
Avrundande kalkylator
Ange ett nummer och välj dina avrundningspreferenser
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🪄 Snabba exempel
📋 Hur det fungerar
Hur det fungerar
1
Steg 1
Choose the target precision or place value.
2
Steg 2
Drop extra digits and move downward toward negative infinity.
3
Steg 3
Return a value that is never greater than the original at that precision.
📊 Exempel
Arbetade exempel
Examples highlight where floor and truncate differ on negatives.
| Ingång | Mål | Metod | Resultat |
|---|---|---|---|
| 2.99 | Närmaste helnummer | Runda ner (golvet) | 2 |
| -2.01 | Närmaste helnummer | Runda ner (golvet) | -3 |
| 12.309 | Närmaste hundradel (2 dp) | Runda ner (golvet) | 12.30 |
Tips
Vanliga misstag
Undvik dessa frekventa avrundningsfel vid validering av utdata.
- Treating floor as simple digit cut-off.
- Expecting floor to behave like nearest rounding.
- Using floor when toward-zero behavior is required.
- Ignoring sign when validating test results.
❓ FAQ
Vanliga frågor
Is floor the same as truncate?
No. Floor moves toward negative infinity while truncate moves toward zero.
How does floor work for negatives?
Negative numbers become more negative whenever there is a remainder.
When is floor useful?
Floor is useful for conservative lower-bound calculations.
Can I compare floor and ceiling quickly?
Yes. Related links let you test the same inputs under both methods.