Scientific calculators that have formula/equation memory

[pier4r]

(06-07-2018 07:56 PM)Lonewolf Wrote:  In my opinion Casio's "state-of-the-art" fx-991EX is nothing more than a gimmick next to the TI-36X Pro... Without memory safeguard you are left with nothing after the 991EX times-out after a few minutes of non-use, or if you must change calculator Modes, —and then return to your original Mode.

It's why I never bought one.
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Thanks for the info, I did not know that modern calc "high end entry level" are without continuous memory. My sharp el-506w has it, as long as I don't change mode (I can understand that changing mode clears everything) so I was assuming the new ones had it too.