Leonhard Euler · 1748 · Internet Archive
Introductio in analysin infinitorum
All 320 leaves · leaf 265
Transcription
EVOLUTIONE FACTORUM ORTIS. 237
CAP. XV.
$S=(M-1)(1-\frac{1}{2^n}) - \frac{1}{9^n} - \frac{1}{15^n} - \frac{1}{21^n} - \frac{1}{25^n} - \frac{1}{27^n} - \&c.,$
& ob
$M(1-\frac{1}{2^n}) = \frac{1}{3} + \frac{1}{3^n} + \frac{1}{9^n} + \frac{1}{15^n} + \frac{1}{21^n} + \&c.,$
erit
$S=(M-1)(1-\frac{1}{2^n})(1-\frac{1}{3^n}) + \frac{1}{6^n} - \frac{1}{25^n} - \frac{1}{35^n} - \frac{1}{45^n} - \&c..$
Hinc, ob datam summam $M$, valor ipsius $S$ commode invenitur, si quidem $n$ fuerit numerus mediocriter magnus.
282. Inventis autem summis altiorum Potestatum, etiam summae Potestatum minorum ex formulis inventis exhiberi possunt. Atque hac methodo
[TRUNCATED]
This text was produced by machine and has not been corrected by hand. Where it matters, read the scan. Confidence is the model's own, not an external check.