$\"\"$

Consider the differential equation $\"\"$ .

Let the particular solution of the differential equation passes through the point $\"\"$ .

Thus, the solution has the slope of $\"\"$ at this point.

Using the small step $\"\"$ and proceeding in the direction indicated by the slope.

Find the point $\"\"$ , where $\"\"$ and $\"\"$ .

Repeat this process for the second point $\"\"$ .

As $\"\"$ and $\"\"$ .

By generating the sequence of points we can get

$\"\"$ and $\"\"$

$\"\"$ or $\"\"$ .