Solving differential equations with sums (power series)
49284
Solving an ODE in power series
51644
Differential Equations for Physicists
63829
Use Cauchy product to find a power series represenitation of $1 \over {(1-x)^3}$
93590
system of ode with non-constant coefficient matrix
98653
Easiest way to solve $y''+y=\frac{1}{\cos x}$
17056
How to find answer to the sum of series $\sum_{n=1}^{\infty}\frac{n}{2^n} $
79027
Find all roots of an interpolating function (solution to a differential equation)
118072
Division of differential equations
37771
Sum of a power series $n x^n$
53658
Find the sum series $\sum_{n=1}^{+\infty} \frac{(-1)^{n-1}(2n-1)}{2^{n-1}}$
91705
Coaxing DSolve to produce an implicit solution
73258
Power series summation
1379
Summation of $n^2x^n$ terms
119552
Summing Finitely Many Terms of Harmonic Series: $\sum_{k=a}^{b} \frac{1}{k}$
127582
Solving of a seperable differential equation
145886
Power series representation/calculation
5189
Solving a system of ODEs with the Runge-Kutta method