Solving differential equations on a 6502 with Woz's floating point code

Re:Solving differential equations on a 6502 with Woz's float... by diydsp on Thursday August 01, 2019 @11:12PM (#20590446)

Is that first-order approximation appropriate for iteratively solving the Diff EQ? Or does a higher order method such as Runge-Kutta have to be used? I notice the graphs don't align perfectly...

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Re:Solving differential equations on a 6502 with Woz's float... by ben165 on Friday August 02, 2019 @01:23AM (#20590800)

It's the easiest approach to solve the ODL: Euler Forward (yes, first order). The approximation could be much better and almost exact with a smaller step size. Runge-Kutta is used for higher ODL's, where the Euler method would fail (especially with periodic solutions).

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