सिद्धान्तशिरोमणि: गणिताध्याय (भास्कराचार्य - ग्रहगणित, मध्यमाधिकार व स्पष्टाधिकार सटीक)

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TERMINOLOGY
N.B.—In as much this Tripraśnādhyāya has a good number of technical terms whose understanding is
necessary to understand the Hindu methods of solving diurnal problems, we shall collect here all
such technical terms under this heading for guidance.

Technical term	Meaning in modern terms	Symbol if any	Formula number	Occurs under verse	Hindu formula	Modern formula
Dṛk-jyā	Hindu sine of the Zenith-distance	H sin z	9	8	H sin z	R = 3438<br>R sin z
Dṛgamsacāpa	Zenith-distance	Z		”
Digjyā*	Hindu azimuth measured from the East point	H sin a		”	H sin a	R sin a
Krāntijyā	H sine of declination	H sin δ		”	H sin δ	R sin δ
Akshajyā	H sine of latitude	H