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Unread 24-12-2016, 21:04
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Re: numerical solution of differential equations

Quote:
Originally Posted by Hitchhiker 42 View Post
Yes, sorry about that. That was what I meant.
OK.

x(t) = 1/4*t^3 + 1 is the analytical solution to the Initial Value Problem

a(t) = sqrt(3*v(t))

with initial values*

x(0.01) = 1.00000025

and

v(0.01) = 7.5e-5

As you can see from the spreadsheet, the Midpoint method gives much better results for that IVP than Forward Euler and Forward/Backward Euler.


* selected to avoid the stationary point at t=0

Attached Files
File Type: xls x=1+0.25(t^3).XLS (94.0 KB, 5 views)
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