How Does Euler's Method Solve Differential Equations?

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Homework Statement


Consider the initial value problem y' = f(t,y), y(t0) = y0
where f: R x R \rightarrow R. An approximate solution to the problem can be found using Euler's method. This generates the approximation yi to f(ti) at ti = t0 + ih, i = 1,2,..., using the formula yi = yi-1 + hf(ti-1,yi-1). Implement Euler's method and then show that your implementation is correct.

Homework Equations


Eulers method equation.


The Attempt at a Solution


I am not sure exactly what it is asking. Is it asking for a numerical example or what?
 
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If this is from a class, ask your teacher what it intended. As the problem is worded I might try something like

y' = x - y, y(0) = 1

and solve it with Euler's method and compare it with the actual solution. But I would ask.
 
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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