Differential Equations and Linear Algebra (4th Edition)

Published by Pearson
ISBN 10: 0-32196-467-5
ISBN 13: 978-0-32196-467-0

Chapter 1 - First-Order Differential Equations - 1.10 Numerical Solution to First-Order Differential Equations - Problems - Page 101: 10

Answer

$y(1)=0.994$

Work Step by Step

We are given: $y'=2xy^2$ Setting $h=0.1$ in equation $y'=2xy^2$ we have: $y_{n+1}=y_n+0.05(x_ny_n^2+x_{n+1}y_{n+1}^2)$ Hence, $x_1=0.1 \rightarrow y_1=0.5025$ $x_2=0.2 \rightarrow y_2=0.5102$ $x_3=0.3 \rightarrow y_3=0.5235$ $x_4=0.4 \rightarrow y_4=0.5434$ $x_5=0.5 \rightarrow y_5=0.5713$ $x_6=0.6 \rightarrow y_6=0.6095$ $x_7=0.7 \rightarrow y_7=0.6617$ $x_8=0.8 \rightarrow y_8=0.7342$ $x_9=0.9 \rightarrow y_9=0.8379$ $x_{10}=1 \rightarrow y_{10}=0.994$ If we increase the step size to $h=0.1$, the corresponding approximation to y(1) becomes $y_{10}=0.994$
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