Suryasiddhanta 2.30

2.30

viṣame pade gatādgrahasya padādito yadgataṃ rāśitribhāgātmakaṃ prāg jñātaṃ tasmādityarthaḥ | bhujajyā syāt | gamyādgatonaṃ tribhaṃ grahāt padāntāvadhikameṣyam | tasmāt koṭiḥ koṭijyā syāt | yugme same tukārāt pada eṣyādbhujajyā gatāt koṭijyā syāt | tukāro viśeṣadyotakaḥ | ekasmādevoktarītyā dvayaṃ sādhitamityarthaḥ | atropapattiḥ | viṣamapade grahoccordhvādhararekhāntarānusāreṇa phalamutpadyate tato vṛttāntastadantaramardhajyā bhujarūpā tadardhacāpaṃ tadantarāṃśā vṛttabhāgasthā gatāḥ | ūrdhvādhararekhā matsyasampannatiryagrekhāyadvayorantarabhūtaṃmardhajyāpadāntaḥ koṭijyā bhujotkramanyonavyāsārdharekhārūpakoṭitulyatvāt | tadarddhacāpaṃ bhujāgronaṃ tribhamiti gamyāt koṭijyā | samapade grahordhvādhararekhāntaraṃ tiryagardhajyā bhujajyeti tadardhaṃ cāpaṃ yadaiṣyaṃ tiryagrekhāgrahāntaraṃ tiryagardhajyākoṭitulyatvāt koṭistaccāpaṃ padagatamityupapannaṃ gatādityādi |
athābhīṣṭakalānāṃ jyāsādhanaṃ ślokābhyāmāha |