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A method of estimating the solution of a given [[Differential Equations|Differential Equation]] $y(t)$.
$\huge
\begin{cases}
y'(t) = f(t,y)\\
y(t_{0})=y_{0}
\end{cases}
$
With a given step size $h$, each iteration of Euler's method is computed as such:
$\huge \begin{align} z_{i+1} &= z_{i} +h f(t_{i},z_{i}) \end{align} $
For smaller and smaller step sizes of $h$, this method will diverge slower.