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70 4. RESOLUCIÓN DE ECUACIONES NO LINEALES<br />

o sea,<br />

f(x)<br />

Método de Newton−Raphson<br />

x 1<br />

x 2<br />

Figura 4.2.<br />

x 0<br />

Figura 4.3.<br />

x 1<br />

xn+1 = xn − f(xn)<br />

f ′ (xn)<br />

Observemos que para que esto tenga sentido, hay que suponer f ′ (xn) = 0, esto es obvio gráficamente<br />

como muestra la figura 4.3.<br />

x 0<br />

f(x)<br />

x 2

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