A book of applied mathematics by Cheng Dawei, a Ming Dynasty mathematician. As a systematic summary of abacus calculation, it is widely acknowledged among merchants relying on abacuses.
Value: 10000
Available:
| Port | Price |
|---|---|
| Palembang | 10000 |
| Requirement | Value |
|---|---|
| Chinese | 1 |
| TECH | 30 |
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