Solve Keplers equation - Printable Version +- HP Forums ( https://www.hpmuseum.org/forum)+-- Forum: HP Calculators (and very old HP Computers) ( /forum-3.html)+--- Forum: HP Prime ( /forum-5.html)+--- Thread: Solve Keplers equation ( /thread-18580.html) |

Solve Keplers equation - Powersoft - 07-21-2022 02:43 PM
I wont to solve Keplers equation with this program, but something is wrong with my guess. Is it possible to solve this with one of the build in commands? Code: `EXPORT Kepler()` RE: Solve Keplers equation - Albert Chan - 07-21-2022 05:39 PM
Code: ` E:=FNROOT(E-M-e0*SIN(E),E,1);` I think FNROOT cannot lookup local variables. If (M,e0) are globals, above work. Code: ` AAngle:=2; // do calculations in degree` You may have to do "AAngle:=0;", to restore HOME default setting. RE: Solve Keplers equation - matalog - 07-23-2022 11:32 AM
What equation do you actually want to solve? Give it in the form of var*bla1-bla2 (etc)=bla3, where var is the variable you want to solve for and bla1,2 and 3 are known numbers (even if they are stored as variables). I'm sure we can write it in a form that the solve command will be able to work with. |