Quote:
Originally Posted by Hitchhiker 42
I see... so that column is in terms of x', not t. I've updated the spreadsheet to reflect that and it seems to show that the Euler method does better.
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You're still struggling with this, but I can't point out your error since you didn't post your spreadsheet.
I think you may have overlooked my earlier
post #24. The attachment shows how to set up the formulas.
The Midpoint method is clearly better than either Forward/Forward Euler or Forward/Backward Euler for this IVP.