Expression 1: "y" equals Start sum from "k" equals 3.5 to "x" minus 0.5, end sum, left parenthesis, left parenthesis, negative 2 plus "k" , right parenthesis ! minus "k" left parenthesis, floor left parenthesis, StartFraction, left parenthesis, negative 2 plus "k" , right parenthesis ! Over "k" , EndFraction , right parenthesis , right parenthesis , right parenthesis left brace, 23 greater than "x" greater than 4 , right bracey=x−0.5∑k=3.5−2+k!−kfloor−2+k!k23>x>4
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Expression 2: Start sum from "j" equals 2 to floor left parenthesis, "x" , right parenthesis , end sum, left parenthesis, left brace, Start sum from "i" equals 2 to StartRoot, "j" , EndRoot , end sum, left brace, mod left parenthesis, "j" , "i" , right parenthesis greater than 0 : 0 , 1 , right brace equals 0 : 1 , 0 , right brace , right parenthesis Has graph. To audio trace, press ALT+T.floorx∑j=2j∑i=2modj,i>0:0,1=0:1,0