scanez: Euler's method

[Danger Fan]

I've got a question on Euler's method. I've got an equation:


y' = 4y - 3x



with the initial condition: y(5) = 3
and dx = .2

how do I find what x0 is? I need it in order to approximate, right?

[Nafae]

moving to "blarg"

[TacKat]

y is a function of x, right? So your initial condition, y(5) = 3, tells you the initial values of both x and y; namely 5 and 3 respectively.

x_0 is the number put into y to give you y_0. Initial conditions are going to be of the form y(x_0) = y_0.

I hope that's clear enough.

[scanez]

Yes, listen to TacKat, he knows what he's talking about ;)

x_0 = 5, the initial x value