Euler’s Calculation of the Sum of the Reciprocals of the ...

2 The Sum of the Reciprocals of the Squares A natural follow-up is to consider the sum of the reciprocals of squares! After all, a positive number less than 1 becomes smaller if you square the value; perhaps their sum could converge to a nite value even though the harmonic series diverges. Many mathematicians of the early 18th century ................
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