[varun_ch]

oh of course. But I meant being able to select a result or equation from 10 minutes ago in the calculator history without re-typing it!

[kristopolous]

These cheap calculators certainly have history. I think it's even persistent.

Chips with megabytes of non-volatile storage can be had for under a dollar at scale these days.

https://us.rs-online.com/product/microchip-technology-inc-/s... ... 4MB (32Mb) $0.74.

The TI-84 EVO brags about having 3MB on their $160.00 device. Cool TI, don't strain yourself...