Page:English translation of the Surya Siddhanta and the Siddhanta Siromani by Sastri, 1861.djvu/35

 reduced to minutes, is to be divided by the (or 800′.) The quotient is the number of the elapsed  (counted from ): (The remainder is called the  of the present, and the  (or 800′) diminished by the  is called the  of that .) The  and  of the present  multiplied by 60 and divided by the sum of the diurnal motions (of the Sun and Moon) become the numbers of the past and to be past (respectively of the present Yoga at the given time.)

. Take the place of the Sun from that of the Moon (found at a given time); divide the remainder, reduced to minutes, by the (of a  or 720′; the quotient is the number of the elapsed tithis or lunar days.) (The remainder is the  of the present, and the  of a  diminished by the  is the  of the present .) The  and  of the present , multiplied by 60 and divided by the difference between the diurnal motions (of the Sun and Moon) become the numbers of the past and to be past  (respectively of the present tithi at the given time).

. The four invariable called, ,  and  (always appropriate to themselves successively the halves of the ,) from the latter half of the fourteenth  of the dark half (of a lunar month to the first half of the first  of the light half of the next lunar month inclusive).

. And the seven variable, &c. afterwards succeed each other regularly, through eight repetitions in a (lunar) month.