Interesting catalog of methods for numerical methods for ODEs

[Valentin Albillo]

 
Hi, Bob:

(10-23-2019 02:00 PM)rprosperi Wrote:  Thanks Valentin. RK was one of my earliest introductions to numerical methods programming [...] Back in the day, most of said programming was in Fortran, so it's naturally comfortable to use a 71B with Math ROM when dabbling with this stuff.

Well, at least for the well-known, widely-used 4^th-order Runge-Kutta method you don't need that much power (71B+Math ROM), a cute HP-25 will suffice, as demonstrated in my article:

          Long Live the HP-25 !

which includes a 39-step RPN program implementing it and still leaving 10 steps to define the y'=f(x,y) to be solved.

Now back to uploading the files for the update #003 to my HP-calc site !

Best regards.
V.