पाटीगणित (श्रीधराचार्य - प्राचीन संस्कृत टीका एवं प्रो. कृपाशंकर शुक्ल सविस्तार व्याख्या)

4 DEFINITIONS
Table of measures of capacity :
11. A khârî is equal to sixteen droṇas ; a droṇa is equal
to four âḍhakas ; an âḍhaka is equal to four prasthas ; and a
prastha is equal to four kuḍavas.¹
The terms droṇa, âḍhaka and kuḍava are also found to be mentioned
in the Vedâṅga-Jyautiṣa,² where an âḍhaka is defined to be a vessel capable
of holding 50 palas of water.
According to the commentator of the present work there are 3200 palas
in a khârî, so that
1 droṇa = 200 palas,
1 âḍhaka = 50 palas,
1 prastha = 12½ palas,
and 1 kuḍava = 3⅛ palas.
Thus we see that the âḍhaka used in the time and locality of the com-
mentator was the same as that used in the time of the Vedâṅga-Jyautiṣa.
From the Triśatikâ³ of Śrīdhara and the Lîlâvatî⁴ of Bhâskara II
(1150 A D.) it appears that the khârî used in Magadha was equivalent to
a cubic cubit. Nârâyaṇa's khârî is equivalent to 5 cubic cubits.⁵
Table of linear measures :
12. Twenty-four aṅgulas (finger-breadths) make a hasta
(cubit) ; four hastas make a daṇḍa (staff) ; two thousand of
them make a krośa ; and four krośas make a yojana.⁶
Nârâyaṇa's daṇḍa is bigger than Śrīdhara's, being equivalent to 10
cubits ; but his other measures are the same as those given here.⁷
Table of time-measures :
13. Sixty ghaṭîs make a nychthemeron (a day-and-night) ; ⁸
thirty of them make a month ; twelve of them make a year.
These are the definitions (used) in this (pâṭî) gaṇita.
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¹ Cf. GSS, i. 36-37 ; L (ASS), vv. 7-8.
² See Ârca-Jyautiṣa, vs. 17 ; Yâjuṣa-Jyautiṣa, vs. 24.
³ See râśi-vyavahâra.
⁴ See L (ASS), p. 10, vs. 7.
⁵ See GK, I, p 3, vv. 10-13.
⁶ Cf. GSS, i. 29-31(i) ; GK, I, pp. 2-3.
⁷ See GK, I, p. 2, vv. 6 ii)-7(i).
⁸ Thus 1 ghaṭî = 24 minutes.