Expression 2: Start sum from "n" equals 1 to 100000, end sum, StartFraction, "a" left bracket, mod left parenthesis, "n" minus 1 , length left parenthesis, "a" , right parenthesis , right parenthesis plus 1 , right bracket Over "n" , EndFraction100000∑n=1amodn−1,lengtha+1n
equals=
0.8 6 6 9 6 7 9 8 7 2 90.86696798729
2
Expression 3: StartFraction, pi plus 2coth to the negative 1st power left parenthesis, StartRoot, 2 , EndRoot , right parenthesis Over 4 StartRoot, 2 , EndRoot , EndFractionπ+2coth−1242