---
license: mit
language:
- ja
- en
tags:
- mathematics
- synthetic
- japanese
- retrieval
task_categories:
- question-answering
pretty_name: LongBook Math 2M (JA basic + advanced)
size_categories:
- 1M<n<10M
---

# LongBook Math 2M (Japanese basic + advanced, unified)

2,000,000 deterministic synthetic Japanese mathematics documents in **one** dataset:
基礎 100万件 + 高度 100万件。Built for [LongBook](https://github.com/Summer110622/LongBook).

- Format: JSONL, one document per line: `{id, namespace, text, metadata{domain, difficulty, lang, kind, index}}`
- `math-*.jsonl` (1,000,000): 基礎8分野 (`namespace=math`) — arithmetic / algebra / calculus / linear_algebra / probability / geometry / number_theory / logic_sets
- `adv-*.jsonl` (1,000,000): 高度8分野 (`namespace=math-advanced`) — analysis / ode / linear_algebra_adv / probability_adv / number_theory_adv / combinatorics_adv / vector_geometry / statistics
- `text` structure (Japanese): 【分野】/【問題 id】/【解法】/【答え】/【キーワード】/【確認】
- Answers are **computed in Python by the generators, not hallucinated** (RSA round-trip, CRT congruences, trace/det, Bayes fractions verified).
- Generators: `dataset/build_math_dataset.py` (`--seed 42`), `dataset/build_advanced_math_dataset.py` (`--seed 123`).
- Reading guide for sub-agents: `dataset/MATH_SUBAGENT.md` (model-agnostic, default `Qwen/Qwen3.5-9B`).

## Usage (datasets)

```python
from datasets import load_dataset
# all 2M
ds = load_dataset("summerMC/LongBook-math-2M", split="train", data_files="*.jsonl")
# basic only / advanced only
basic = load_dataset("summerMC/LongBook-math-2M", split="train", data_files="math-*.jsonl")
adv = load_dataset("summerMC/LongBook-math-2M", split="train", data_files="adv-*.jsonl")
```

## Usage (LongBook retrieval)

```bash
python3 dataset/bulk_ingest_math_dataset.py --input <dir> --namespace math --db ./data/longbook.sqlite3
# namespace はファイル内の値(math / math-advanced)に合わせて --namespace を指定
curl http://127.0.0.1:30000/v1/longbook/search \
  -H 'Content-Type: application/json' \
  -d '{"query":"固有値 対角化","namespace":"math-advanced","top_k":5}'
```