Hi, this function has been added a while back – here is the info on that :-)

FAQ: How to M+ M- MR & MC?

As you know, CALC is built around productivity, efficiency and reliability. An essential missing piece of the memory function on traditional calculators has always been the complete lack of transparency and verifiability of any of the numbers you were adding into it. CALC solves this problem in a number of ways:

Option 1: You have the ability to Select and Aggregate any History entry. CALC will also Auto-sum all numbers entered each day.

Option 2: In the Landscape Mode, you can swipe down (or tap an hold) the three dots in the upper left side, to reveal the “Tape-roll” mode, where you have the ability to do fast Sub-sums and Total sums of your entries and you can also turn the history off temporarily so that you do not put all the intermediate numbers into it.

Option 3: If you tap and hold the ANS button, you can switch it from last answer(s) into the more traditional M+/-R mode and use it like your were used to. One added benefit is that CALC will always display the running memory value in the top left (Tip) corner for your convenience.

Happy CALCing!