ecuaciones metodo euler

Post on 01-Nov-2015

87 Views

Category:

Documents

0 Downloads

Preview:

Click to see full reader

DESCRIPTION

metodo de euler ecuaciones diferenciales

TRANSCRIPT

  • Hallar los valores aproximados de la solucion del problema dado con valorinicial, en t = t0 + 0.1, t0 + 0.2, t0 + 0.3 y t0 + 0.4:

    a) Aplicar el metodo de Euler con h = 0.1

    b) Aplicar el metodo de Euler con h = 0.05

    c) Aplicar el metodo de Euler con h = 0.025

    1. y = ex2, x(0) = 1

    a) Aplicando el metodo de Euler: yn+1 = yn + hf(tn, yn) con h = 0.1Sea t1 = 1 + 0.1Para t1 = 1.1y1 = 3 + (0.1)f(1.1 , 3)y1 = 3 + (0.1)(2.0248)y1 = 3.2024

    Para t2 = 1.2y2 = 3.2024 + (0.1)f(1.2 , 3.2024)y2 = 3.2024 + (0.1)(2.0982)y2 = 3.4122

    Para t3 = 1.3y3 = 3.4122 + (0.1)f(1.3 , 3.4122)y3 = 3.4122 + (0.1)(2.1707)y3 = 3.6292

    Para t4 = 1.4y4 = 3.6292 + (0.1)f(1.2 , 3.2024)y4 = 3.6292 + (0.1)(2.0982)y4 = 3.4122

    b) Aplicando el metodo de Euler: yn+1 = yn + hf(tn, yn) con h = 0.05

    Para t1 = 1.1y1 = 3 + (0.05)f(1.1 , 3)y1 = 3 + (0.05)(2.0248)y1 = 3.1012

    Para t2 = 1.15y2 = 3.1012 + (0.05)f(1.15 , 3.1012)

    1

  • y2 = 3.1012 + (0.05)(2.0618)y2 = 3.2042

    Para t3 = 1.2y3 = 3.2042 + (0.05)f(1.2 , 3.2042)y3 = 3.2042 + (0.05)(2.0986)y3 = 3.3091

    Para t4 = 1.25y4 = 3.3091 + (0.05)f(1.25 , 3.3091)y4 = 3.3091 + (0.05)(2.1352)y4 = 3.4158

    Para t5 = 1.3y5 = 3.4158 + (0.05)f(1.3 , 3.4158)y5 = 3.4158 + (0.05)(2.1716)y5 = 3.5243

    Para t6 = 1.35y6 = 3.5243 + (0.05)f(1.35 , 3.5243)y6 = 3.5243 + (0.05)(2.2077)y6 = 3.6346

    Para t7 = 1.4y7 = 3.6346 + (0.05)f(1.4 , 3.6346)y7 = 3.6346 + (0.05)(2.2438)y7 = 3.7467

    Para t8 = 1.45y8 = 3 + (0.05)f(1.45 , 3.7467)y8 = 3 + (0.05)(2.2796)y8 = 3.860

    c) De manera similar se obtienen los resultados de h = 0.025 y se muestranen la siguiente tabla:

    2

  • n tn yn f(tn, yn) Aproximacion1 1.025 3 2.1246 3.05032 1.05 3.0503 2.0310 3.10103 1.075 3.1010 2.0496 3.15234 1.1 3.1523 2.0681 3.20405 1.125 3.2040 2.0866 3.25626 1.15 3.2562 2.1050 3.30887 1.175 3.3088 2.1233 3.36198 1.2 3.3619 2.1417 3.41549 1.225 3.4154 2.1599 3.469410 1.25 3.4694 2.1781 3.523911 1.275 3.5239 2.1963 3.578812 1.3 3.5788 2.2144 3.634113 1.325 3.6368 2.2325 3.689914 1.35 3.6899 2.2505 3.746215 1.375 3.7462 2.2685 3.802916 1.4 3.8029 2.2864 3.8601

    3

top related