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Toronto Math Forum
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MAT334--2020S
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MAT334--Lectures & Home Assignments
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Chapter 2
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2.4
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Topic: 2.4 (Read 3407 times)
serena li
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2.4
«
on:
March 01, 2020, 10:18:13 PM »
For the question asking to find the power-series expansion about the given point for the function and find the largest disc where the series are valid, I am confused about how to find the valid largest disc. Thank you so much.
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Victor Ivrii
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Re: 2.4
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Reply #1 on:
March 07, 2020, 08:08:06 AM »
Either investigate the power series or to use theorem that if $f$ is analytic in some disc $D(z_0,r)$, then the expansion at its center $z_0$ converges in this disc.
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Toronto Math Forum
»
MAT334--2020S
»
MAT334--Lectures & Home Assignments
»
Chapter 2
»
2.4