Laplace differential equation

bobbym · 2013-12-19 05:32:59

Frobenius is solving a DE by using series methods. It is not an exact solution unless you can recognize the series by sight.

I only have 1 example in my notes.

You did not specify that we could use other methods besides the Laplace transform.

You might want to look at this page:

ammar · 2013-12-20 19:01:22

We take Frobenius and Laplace to solve D.E .I have 5 examples that covered the subject but I have some problems with series like

how to Convert series into a general equati

1+x+x^2+x^3= [[1/(1-x)]] something like that

and what is familiar function ??

Thanks for your time

bobbym · 2013-12-20 22:33:34

Familiar function? What is that?

ammar · 2013-12-21 00:19:43

It's series like

sin(x)
cos(x)
exp(x)
exp(-x)

bobbym · 2013-12-21 04:11:47

First of all you would usually have a chart of the common series. You should recognize all of those series when you see them.

ammar · 2013-12-21 06:21:08

Where can I find chart ?

bobbym · 2013-12-21 06:50:48

Also, you can use Wolfram alpha.

The ones you mentioned up there should be memorized.

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