Crossword Clue:

Of or relating to mathematics

AnswerCrossword Clue
CAESAREANRelating to Julius or Augustus
TEXTURALRelating to roughness or smoothness, say
FILIALRelating to a son or daughter
POSTALRelating to a prestamped card or envelope
SINESIn mathematics, they're never more than 1 or less than minus 1.