Fmm prec plot#786

Draft

Yrisch wants to merge 10 commits intodanieljprice:masterfrom

Yrisch:FMM_prec_plot

Commits on Dec 10, 2025

(test_grav) long_range force comparison
Yrisch
committed

Commits on Dec 12, 2025

(test_grav) agree with shamrock
Yrisch
committed

Commits on Dec 18, 2025

(test_grav) Plummer sphere before polish
Yrisch
committed

Commits on Dec 19, 2025

(test_grav) bad clean up
Yrisch
committed

Commits on Jan 2, 2026

(grav) final clean up, FMM method switch added
Yrisch
committed

Commits on Jan 15, 2026

Commits on Jan 21, 2026

(test_grav) add plotplummer to grav test strings
Yrisch
committed

Commits on Jan 27, 2026

(grav) minor fixes and adjust toli
Yrisch
committed