Taylor Series are Limits of Legendre Expansions - Gvsu - Grand ...
Taylor Series are Limits of Legendre Expansions - Gvsu - Grand ...
Taylor Series are Limits of Legendre Expansions - Gvsu - Grand ...
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Neumann’s Theorem (1862)<br />
If f is analytic in an ellipse containing the closed unit disk<br />
and having foci at (±1, 0), then for z contained in this ellipse,<br />
we may write<br />
f(z) =<br />
∞∑<br />
n=0<br />
a n P n (z), where a n = 2n + 1<br />
2<br />
∫ t=1<br />
t=−1<br />
f(t)P n (t)dt.<br />
<strong>Taylor</strong> <strong>Series</strong> <strong>are</strong><strong>Limits</strong> <strong>of</strong> <strong>Legendre</strong> <strong>Expansions</strong> – p.5/15