Declension table of ?samadhyayana

Neuter	Singular	Dual	Plural
Nominative	samadhyayanam	samadhyayane	samadhyayanāni
Vocative	samadhyayana	samadhyayane	samadhyayanāni
Accusative	samadhyayanam	samadhyayane	samadhyayanāni
Instrumental	samadhyayanena	samadhyayanābhyām	samadhyayanaiḥ
Dative	samadhyayanāya	samadhyayanābhyām	samadhyayanebhyaḥ
Ablative	samadhyayanāt	samadhyayanābhyām	samadhyayanebhyaḥ
Genitive	samadhyayanasya	samadhyayanayoḥ	samadhyayanānām
Locative	samadhyayane	samadhyayanayoḥ	samadhyayaneṣu

Compound samadhyayana -

Adverb -samadhyayanam -samadhyayanāt