Brahmasphutasiddhanta · Chapter 20

ṛgvargaḥ paryāyaḥ samūhayogāvayukṣu yugmeṣu/
soyāḥ prāgvatprāptādāścatuṣkakāḥ śeṣayuktyontyaḥ//

ekādiyutavihīnāvādyantau tadviparyayau yāvat/
vargādiṣu viṣamayujāṃ kramotkramādvardhayetpādān//

ekaikena dvyādvyāḥ soppappadhikeṣu tatpratiṣṭheṣu/
vargādirabhīṣṭāntaḥ prastāro bhavati yavamadhyaḥ//

sūnontyo dvipadāgraṃ tripadādyānāmadhaḥ pṛthak saṃkhyā/
tacchodhyo vyekaḥ pṛthagntādrūpamūrdhvayutam//

yāvat pādāvyekāgacchādvarṇeṣvathaikavṛddheṣu/
rūpādyutaghāte vargādyānāṃ parā saṃkhyā//

rūpādhikapādārdheviṣameṣūrdhvaḥ sameṣu pādārdhe/
ardhādviguṇāvyekāṃyulānyadhastasya sarveṣām//

mādhyais tathārdhahīnaiḥ kramapādair vyastatulyapādādyaḥ/
viṣameravyekaṃ madhye prohyādyānyataḥ kuryāt//

saikakramatulyādyair nyāso'bhyadhiko viśodhitaś cādhaḥ/
saṃkhyaikyaṃ tādṛk yādṛk prathamas trirahito naṣṭe//

mādhyaiḥ kṛtaiś ca dalitaiḥ samasaṃkhyāyāṃ kramotkramāt kṣeppam/
viṣamāyāṃ vyekāyāṃ dalam kramād uttkramāt saikam//

samasaṃkhyāyāṃ sopānakramotkramābhyāṃ tathaiva viṣamābhyām/
kalpyā pacite dṛṣṭe prathamaḥ śeṣākṣarāṇyante//

samadalasamaviṣamāṇāṃ saṃkhyāpādārdhasarvakalpavadhaḥ/
svādyavadho'nyaiḥ pādaiḥ svaparasya prāgvadhaḥ saikaiḥ//

ādyādanantaro'dhaḥ kalppo'nyatulyamādyaḥ prāk/
nyāso vargo'nyonaḥ prastāro'rdhasamaviṣamāṇām//

naṣṭentyāt svādhasthonakalpaghāto'rdhatulyaviṣamāṇām/
vyekaḥ pṛthak svavargoddhṛtaḥ phalaṃ tulyakalyānām//

uddiṣṭe kalpahṛte'tītaiḥ prathamaḥ phale sarūpe 'nyaḥ/
asakṛdvargāṃśayute saike vārdhasamaviṣamāṇām//

kapeṣu pṛthak gurulaghusaṃkhyaikādibhājitā prāgvat/
viṣameṣvādyalaghūno laghubhir meruḥ samādīnām//

ekadvitayoḥ parato dvisaṃguṇo'nantarādvirūpo'dhaḥ/
vargadharādyonodalasamaviṣamāṇāṃ dhvajo laghubhiḥ//

laghusaṃkhyā padadalitā parato'dho'dhaś ca śudhyati hṛtā yaiḥ/
dviguṇāntaiḥ śuddhair vargaparair mandaro laghubhiḥ//

kṛtvādho'dhaḥ kalpyānyekādyekottarānadhasteṣām/
svāt parato'nyaikyam adhaḥ prastārād uktavad ihādyaiḥ//

guruṣaṣṭyekānighaṭīdviguṇānyekāṃgulāni saṃkhyā syāt/
drāviṃśatir āryāṇāṃ chandaścityuttaro'dhyāyaḥ//
iti śrī-brāhmasphuṭa-siddhānte chandaścityuttarādhyāyo viṃśatitamaḥ//