Surya Siddhanta
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गुणाश्विरूपनेत्राणि पावकाग्निगुणाश्विनः। (२१२३, २३३३) वस्वर्णवार्थयमलास् तुरङ्गर्तुनगाश्विनः॥(२५४८, २७६७)
- 2123, 2333, 2548, 2767 -
english translation
guNAzvirUpanetrANi pAvakAgniguNAzvinaH। (2123, 2333) vasvarNavArthayamalAs turaGgartunagAzvinaH॥(2548, 2767)
hk transliteration by Sanscriptनवाष्टनवनेत्राणि पावकैकयमाग्नयः । (२९८९, ३२९३) गजाग्निसागरगुणा उत्क्रमज्यार्धपिण्डकाः॥ (३४३८)
- 2989, 3293, 3438, versed sines (in a quadrant).
english translation
navASTanavanetrANi pAvakaikayamAgnayaH । (2989, 3293) gajAgnisAgaraguNA utkramajyArdhapiNDakAH॥ (3438)
hk transliteration by Sanscriptपरमापक्रमज्या तु सप्तरन्ध्रगुणेन्दवः । (१३९७) तद्गुणा ज्या त्रिजीवाप्ता तच्चापम् क्रान्तिर् उच्यते ॥ (C इष्यते)
The sine of the (mean) greatest declination, (of each of the planets)=1307 (the sine of 24°). The Rule for finding the planet's (mean) declination from its longitude.Multiply the sine (of the longitude of a planet) by the said sine 1307; divide product by the radius 3438; find the arc whose sine is equal to the quotient. This arc is the (mean[1]) declination (of the planet required). [1.The mean declination of a planet is the declination of its corresponding point in the ecliptic: but the Sun's mean declination is the same as his true declination. B. D.]
english translation
paramApakramajyA tu saptarandhraguNendavaH । (1397) tadguNA jyA trijIvAptA taccApam krAntir ucyate ॥ (C iSyate)
hk transliteration by Sanscriptग्रहम् सम्शोध्य मन्दोच्चात् तथा शीघ्राद् विशोध्य च । शेषम् केन्द्रपदम् तस्माद् भुजज्या कोटिर् एव च ॥(C केन्द्रम् पदम्)
Subtract the place of the planet from those of the Mandochcha[2] and Śíghrochcha: and the remainders[3] are the Kendras. From the Kendra determine the quadrant (in which the Kendra ends,) and the sines of the Bhuja and Koṭi[4] (of the Kendra).
english translation
graham samzodhya mandoccAt tathA zIghrAd vizodhya ca । zeSam kendrapadam tasmAd bhujajyA koTir eva ca ॥(C kendram padam)
hk transliteration by Sanscriptगताद् भुजज्या विषमे गम्यात् कोटिः पदे भवेत्।*युग्मे तु गम्याद् बाहुज्या कोटिज्या तु गताद् भवेत् ॥(C समे)
The sine of the Bhuja (of the arc which terminates) in an odd quadrant (i. e. 1st and 3rd,) is the sine of that part of the given arc which falls in the quadrant where it terminates, but the sine of the Koṭi (of that arc) is the sine of that arc which it wants to complete the quadrant where the given arc ends; and the sine of the Bhuja (of the arc) which ends in an even quadrant (i. e. 2nd and 4th) is the sine of that arc which it wants to complete the quadrant where the given arc ends; but the sine of the Koṭi (of that arc) is the sine of that part of the given arc which falls in that quadrant where it terminates.
english translation
gatAd bhujajyA viSame gamyAt koTiH pade bhavet।*yugme tu gamyAd bAhujyA koTijyA tu gatAd bhavet ॥(C same)
hk transliteration by Sanscript