▁being ▁his ▁nom ▁de ▁pl ume ▁( t akh all us ). ▁ ▁Life ▁and ▁works ▁One ▁of ▁the ▁earliest ▁mentions ▁of ▁Da ’ i ▁An jud ani ▁is ▁among ▁the ▁record ▁of ▁po ets ▁compiled ▁by ▁I sk and ar ▁Beg ▁Mun sh i ▁during ▁the ▁reign ▁of ▁Shah ▁T ah m asp ▁I ▁in ▁the ▁mid - 1 6 th ▁century . ▁Here , ▁he ▁is ▁described ▁as ▁a ▁prominent ▁scholar . ▁His ▁brother , ▁Mal ik ▁T ay fur ▁is ▁described ▁in ▁the ▁same ▁light ▁as ▁a ▁p ious ▁and ▁devoted ▁man ▁and ▁is ▁also ▁noted ▁also ▁as ▁a ▁world ▁travel er . ▁Da ’ i ▁is ▁port rayed ▁as ▁a ▁self - dis cipl ined ▁and ▁r igh te ous ▁figure , ▁“ like ▁a ▁der v ish ”. ▁Da ’ i ▁is ▁noted ▁for ▁his ▁luc id ▁poetry , ▁in ▁particular ▁his ▁od es ▁( qa ṣ ā ’ id ) ▁and ▁love ▁vers es ▁( gh az ali yy ā t ). ▁Both ▁Da ’ i ▁and ▁his ▁brother ▁Mal ik ▁appear ▁in ▁L utf ▁‘ A li ▁Beg ’ s ▁anth ology ▁of ▁po ets ▁entitled ▁ Ā t ish k ada . ▁ ▁References ▁ ▁Category : I ran ian ▁Is mail is ▁Category : Mus lim ▁po ets ▁Category : Year ▁of ▁death ▁unknown ▁Category : Year ▁of ▁birth ▁unknown <0x0A> </s> ▁In ▁algebra ▁( in ▁particular ▁in ▁algebraic ▁geometry ▁or ▁algebraic ▁number ▁theory ), ▁a ▁valu ation ▁is ▁a ▁function ▁on ▁a ▁field