Declension table of ?brahmasphuṭasiddhānta

Masculine	Singular	Dual	Plural
Nominative	brahmasphuṭasiddhāntaḥ	brahmasphuṭasiddhāntau	brahmasphuṭasiddhāntāḥ
Vocative	brahmasphuṭasiddhānta	brahmasphuṭasiddhāntau	brahmasphuṭasiddhāntāḥ
Accusative	brahmasphuṭasiddhāntam	brahmasphuṭasiddhāntau	brahmasphuṭasiddhāntān
Instrumental	brahmasphuṭasiddhāntena	brahmasphuṭasiddhāntābhyām	brahmasphuṭasiddhāntaiḥ brahmasphuṭasiddhāntebhiḥ
Dative	brahmasphuṭasiddhāntāya	brahmasphuṭasiddhāntābhyām	brahmasphuṭasiddhāntebhyaḥ
Ablative	brahmasphuṭasiddhāntāt	brahmasphuṭasiddhāntābhyām	brahmasphuṭasiddhāntebhyaḥ
Genitive	brahmasphuṭasiddhāntasya	brahmasphuṭasiddhāntayoḥ	brahmasphuṭasiddhāntānām
Locative	brahmasphuṭasiddhānte	brahmasphuṭasiddhāntayoḥ	brahmasphuṭasiddhānteṣu

Compound brahmasphuṭasiddhānta -

Adverb -brahmasphuṭasiddhāntam -brahmasphuṭasiddhāntāt