Expression 1: "y" Subscript, "e" "s" , Baseline left parenthesis, "x" , right parenthesis equals left brace, "x" greater than 0 : 1 , right braceyesx=x>0:1
1
Expression 2: negative 1 less than "y" less than "y" Subscript, "e" "s" , Baseline left parenthesis, Start product from "i" equals 1 to StartRoot, floor left parenthesis, "x" , right parenthesis , EndRoot , end product, mod left parenthesis, floor left parenthesis, "x" , right parenthesis , "i" plus 1 , right parenthesis , right parenthesis−1<y<yesfloorx∏i=1modfloorx,i+1