Can today’s cheap throwaway calculators solve simultaneous equations?
When I last used a programmable they were getting enough steps to be able to program the math for such a thing. Maybe by 2020 there will be Linux on $5/$10 machines with QWERTY and some crude color graphics. If the whole world hasn’t gone to hell that is.
Why use a calculator? In 1971, I was expected to solve simultaneous equations using matrices.