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The development of Indian trigonometry , based on sine as against chord of the Greeks , a necessity for astronomical calculations with his own concise notation which expresses the full sine table in just one couplet for easy remembrance. One of the two methods suggested by him for the sine table is based on the property that the second order sine differences were proportional to sines themselves.
In, P.245 (Encyclopaedia of the History of Science, Technology, and Medicine in Non-Western Cultures) | ||
