Initial Value Problems for Linear Shooting Method

danbone87
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Homework Statement



y''-by'=f(x)

I have to "derive and submit the appropriate initial value problems (with initial conditions) for u(x) and v(x). Show me all 4 equations and initial conditions... "

and I know you get u(x) and v(x) by solving ivp's for the original equation, one homogeneous and one not. but do i use two initial guesses for y'(0)=? and then i have 4 of those? I'm unsure of what is being asked exactly.
 
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danbone87 said:
y''-by'=f(x)

i'm unsure of what is being asked exactly.

So am I. What is f(x), u(x) and v(x) and how are they related?
 
u+av

is a linear combination of y. such that u'(0) = 0 and v'(0)=a
 
whoops, v'(0)=1
 
There are two things I don't understand about this problem. First, when finding the nth root of a number, there should in theory be n solutions. However, the formula produces n+1 roots. Here is how. The first root is simply ##\left(r\right)^{\left(\frac{1}{n}\right)}##. Then you multiply this first root by n additional expressions given by the formula, as you go through k=0,1,...n-1. So you end up with n+1 roots, which cannot be correct. Let me illustrate what I mean. For this...
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