I use both. Frink is on my phone. I have SMath Studio (or Smath)on my phone, which is a MathCAD clone, and is now free even for commercial use [1].
I have a bunch of tools in my toolbelt from working in engineering for many years. I always recommend Frink, SMath Studio, and the J programming language among the many tools. I am a polyglot, and I find Frink's simplified Java easy to use for even creating an input window for applications I find myself using repetitively.
I have a bunch of tools in my toolbelt from working in engineering for many years. I always recommend Frink, SMath Studio, and the J programming language among the many tools. I am a polyglot, and I find Frink's simplified Java easy to use for even creating an input window for applications I find myself using repetitively.
[1] https://en.smath.com/view/SMathStudio/summary