Expression 1: "e" Subscript, "q" "z" , Baseline left parenthesis, "x" , right parenthesis equals left brace, "x" equals 0 : 0 , "x" greater than 0 : 1 , "x" less than 0 : 1 , right braceeqzx=x=0:0,x>0:1,x<0:1
1
Expression 2: "y" equals "e" Subscript, "q" "z" , 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 parenthesisy=eqzfloorx∏i=1modfloorx,i+1