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Nadir Arada - (Cálculo Numérico) - Portal de docentes FCT/UNL

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Problema <strong>de</strong> Cauchy Derivada numérica Aproximação Euler Estabilda<strong>de</strong> Runge-Kutta 2 Runge-Kutta 4<br />

K 3 i<br />

K 4 i<br />

<br />

2 = − 5<br />

ui + h<br />

2K2i <br />

+ sin 5ti + h<br />

<br />

2<br />

= f ti + h<br />

2 , ui + h<br />

2K2i = − 2<br />

<br />

5 1 − h<br />

<br />

h2<br />

5 + 25<br />

ui + <br />

h 2<br />

5 sin (5ti) + 5−h<br />

5 sin 5ti + h<br />

<br />

2<br />

= f ti+1, ui + hK3 <br />

2<br />

i = −<br />

= − 2<br />

<br />

+<br />

5<br />

<br />

− 2h<br />

5<br />

1 − h<br />

5<br />

2h2 + 25<br />

+ 2h2<br />

25<br />

<strong>Cálculo</strong> <strong>Numérico</strong> - Équações diferenciais ordinárias<br />

<br />

− 2h3<br />

125<br />

5<br />

<br />

ui + hK3 <br />

i + sin (5ti+1)<br />

<br />

ui − 2h3<br />

125 sin (5ti)<br />

sin 5ti + h<br />

<br />

2 + sin (5ti+1)

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