Expressão 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
2
Expressão 3: StartFraction, pi StartRoot, 7 , EndRoot Over 7 , EndFractionπ77