A hand-held calculator will suffice for the Problem. The problem an initial value problem and its exact solution are given. Approximate the values of x(0.2) and y(0.2)in three ways: (a) by the Euler method with two steps of size h = 0.1; (b) by the improved Euler method with a single step of size h = 0.2; and (c) by the Runge–Kutta method with a single step of size h = 0.2. Compare the approximate values with the actual values x(0.2) and y(0.2). x' =  3x - y, x(0) = 2, y' = x + y, y(0) = 1; x(t) = (t+2) e2t, y(t) = (t+1) e2t

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
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A hand-held calculator will suffice for the Problem. The problem an initial value problem and its exact solution are given. Approximate the values of x(0.2) and y(0.2)in three ways: (a) by the Euler method with two steps of size h = 0.1; (b) by the improved Euler method with a single step of size h = 0.2; and (c) by the Runge–Kutta method with a single step of size h = 0.2. Compare the approximate values with the actual values x(0.2) and y(0.2).

x' =  3x - y, x(0) = 2,

y' = x + y, y(0) = 1;

x(t) = (t+2) e2t, y(t) = (t+1) e2t

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