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Ecuación diferencial (x^2)*y"+3*x*y'-6y=e^x

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v

Para el problema de Cauchy:

y() =
y'() =
y''() =
y'''() =
y''''() =

Gráfico:

interior superior

Solución

Ha introducido [src]
               2                          
           2  d              d           x
-6*y(x) + x *---(y(x)) + 3*x*--(y(x)) = e 
               2             dx           
             dx                           
$$x^{2} \frac{d^{2}}{d x^{2}} y{\left(x \right)} + 3 x \frac{d}{d x} y{\left(x \right)} - 6 y{\left(x \right)} = e^{x}$$
x^2*y'' + 3*x*y' - 6*y = exp(x)
Respuesta [src]
                   /                                                                                                            ___           ___                                                                                      ___           ___                                        \             
               ___ |               /      ___     pi*I\     ___           /      ___     pi*I\           ___         ___    2*\/ 7   2*pi*I*\/ 7            //       ___\  pi*I     pi*I\                 ___         ___     ___  2*\/ 7   2*pi*I*\/ 7            //       ___\  pi*I     pi*I\|          ___
        -1 - \/ 7  |     lowergamma\1 + \/ 7 , x*e    /   \/ 7 *lowergamma\1 + \/ 7 , x*e    /       2*\/ 7   pi*I*\/ 7    x       *e            *lowergamma\\-1 + \/ 7 /*e    , x*e    /        ___  2*\/ 7   pi*I*\/ 7    \/ 7 *x       *e            *lowergamma\\-1 + \/ 7 /*e    , x*e    /|  -pi*I*\/ 7 
       x          *|C1 + ------------------------------ - ------------------------------------ - C2*x       *e           - -------------------------------------------------------------- + C2*\/ 7 *x       *e           + --------------------------------------------------------------------|*e           
                   \                   2                                   14                                                                            2                                                                                                   14                                 /             
y(x) = -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                                                                                             ___                                                                                                                                              
                                                                                                                                                      -1 + \/ 7                                                                                                                                               
$$y{\left(x \right)} = \frac{\left(C_{1} - C_{2} x^{2 \sqrt{7}} e^{\sqrt{7} i \pi} + \sqrt{7} C_{2} x^{2 \sqrt{7}} e^{\sqrt{7} i \pi} + \frac{\sqrt{7} x^{2 \sqrt{7}} e^{2 \sqrt{7} i \pi} \gamma\left(\left(-1 + \sqrt{7}\right) e^{i \pi}, x e^{i \pi}\right)}{14} - \frac{x^{2 \sqrt{7}} e^{2 \sqrt{7} i \pi} \gamma\left(\left(-1 + \sqrt{7}\right) e^{i \pi}, x e^{i \pi}\right)}{2} - \frac{\sqrt{7} \gamma\left(1 + \sqrt{7}, x e^{i \pi}\right)}{14} + \frac{\gamma\left(1 + \sqrt{7}, x e^{i \pi}\right)}{2}\right) e^{- \sqrt{7} i \pi}}{x^{1 + \sqrt{7}} \left(-1 + \sqrt{7}\right)}$$
Clasificación
nth linear euler eq nonhomogeneous variation of parameters
nth linear euler eq nonhomogeneous variation of parameters Integral