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Table of Circular and Hyperbolic Tangents and Cotangents for Radian Arguments Table of Circular and Hyperbolic Tangents and Cotangents for Radian arguments
Prif Awdur: | |
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Fformat: | Printed Book |
Iaith: | English |
Cyhoeddwyd: |
New York:
Columbia University Press,
1947.
|
Rhifyn: | 1947. |
Pynciau: |