Bulat Separuh Bawah
Half Down ialah kaedah khusus seri untuk kes di mana kecenderungan seri ke atas harus dikurangkan.
Kalkulator Pembundaran
Masukkan nombor dan pilih pilihan pembundaran anda
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🪄 Contoh Pantas
📋 Bagaimana Ia Berfungsi
Bagaimana Ia Berfungsi
1
Langkah 1
Round to the nearest value for non-tie digits.
2
Langkah 2
On exact ties at 5, round downward.
3
Langkah 3
Keep method behavior consistent across all place values.
📊 Contoh
Contoh Kerja
Tie cases are emphasized so Half Down differences stay clear.
| Input | Sasaran | Kaedah | Hasilnya |
|---|---|---|---|
| 2.5 | Nombor Bulat Terdekat | Bulat Separuh Bawah | 2 |
| 7.45 | Kesepuluh Terhampir (1 dp) | Bulat Separuh Bawah | 7.4 |
| 1250 | Ratus Terdekat | Bulat Separuh Bawah | 1200 |
Petua
Kesilapan Biasa
Elakkan ralat pembundaran yang kerap ini semasa mengesahkan output.
- Treating Half Down as a directional method.
- Forgetting that values above 5 still round up.
- Applying Half Down when regulation requires Half Even.
- Ignoring sign-sensitive cases in test examples.
❓ Soalan Lazim
Soalan Lazim
What is the Half Down tie rule?
Exact ties at 5 round down; values above 5 round up.
Is Half Down the same as floor?
No. Half Down is nearest-value with tie logic, floor is directional toward negative infinity.
When is Half Down useful?
It is useful when your rounding policy requires downward tie handling.
Can I compare Half Down with other methods?
Yes. Use related method pages for direct tie-policy comparisons.