Altair slc fun with sympy series and integrals to define common functions and constants;
Too long to post on a list, see
https://github.com/rogerjdeangelis/utl-altair-slc-fun-with-sympy-series-and-integrals-to-define-common-functions-and-constants
These formulations are fundamental and can help with many structural models. Basis for integral and defferential problems?
