Top three calculators ?

[tom234]

After using sharp and Casio and Ti30 from 1970s.
I had a shape Programable but it did not have a solve for both sides you had to write the equation multiple times for the variable you wanted to solve for. Got fed up.
TG for HP Solve.

I got a 1. HP27s, 2.HP Prime, and 3. Android Samsung with every caclator imaginable including HP42 my favourite.

However, I will soon purchase a DM42 and DM15L and HP12 Plantnum.
Just for the fun of it.

HP Prime in the Physical is the best.
You guys and gals are great thanks for your help and kindness.