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5th order expression?

Seems there is an error in the 5th order expression as k2 is not used in the final statement. For an expression for the 5th order, see here PeterWoolf 16:14, 2 September 2008 (EDT)

Wrong y values used in Euler table?

The table illustrates the expansion of the Euler method, but in the row for y(0.5), the y values used should be from the previous point, y(0). So, y(0.5) = y(0) + h*y(0).