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A comment on Intro to Computational Physics. Parent comment

Re:Intro to Computational Physics by santaclaus on Friday December 09, 2016 @01:34PM (#13140708)
> The Euler method is too inaccurate to be useful.

You can make it as accurate as you want by shrinking the time step. :)

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Re:Intro to Computational Physics by drjesusphd on Friday December 09, 2016 @02:29PM (#13141124)
That's no way to go through life.
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Re:Intro to Computational Physics by sonium on Friday December 09, 2016 @03:55PM (#13141759)
This is actually not true since rounding errors will compound.
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Re:Intro to Computational Physics by santaclaus on Friday December 09, 2016 @05:30PM (#13142432)
Sure, in IEEE 754! But to call the various explicit variants of Euler useless is a bit off. Symplectic Euler is quite nice in certain applications. Hell, Newton derived a number of theorems by reasoning about explicit Euler discretizations (usually geometrically).
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