Muad`Dib: Some sums

Monday, 29 March 2010

Some sums

1 − 1 + 1 − 1 + ... = 1/2

1 + 1 + 1 + 1 + ... = -1/2

1 + 2 + 3 + 4 + ... = -1/12

1 + 2 + 4 + 8 + ... = -1

1 − 2 + 4 − 8 + ... = 1/3

1 * 2 * 3 * 4 * ... = sqrt(2*pi)

2 * 3 * 5 * 7 * ... = 4*pi^2

3 comments:

Anonymous said...: Sbagliero', ma questo blog mi sa tanto di Normale di Pisa. Ottimo lavoro Muad`Dib.

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