Risāla al-watar waʾl-jaib (Q27974349)
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work by al-Kāshī; In his third masterpiece, Risāla al-watar waʾl-jaib (“Treatise on the Chord and Sine”), he calculates the sine of 1° correct to 10 sexagesimal places
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Risāla al-watar waʾl-jaib |
work by al-Kāshī; In his third masterpiece, Risāla al-watar waʾl-jaib (“Treatise on the Chord and Sine”), he calculates the sine of 1° correct to 10 sexagesimal places |