Yes, calculators are made from plastic ^^

[Steve Simpkin]

(02-23-2014 01:09 AM)Stefan Wrote:  Did you have it in "Math2D" mode (this "natural display" mode)? My 991ES-Plus does definitly loose keypresses. This key-press-loosing is also frequently mentioned in reviews about the calc.
Maybe use even more sqrts to produce the lag.

Yes and the 115ES Plus did a good job of updating the display while I was quickly pressing the sqrt key. With a bit more testing I found it did miss key presses but only if I pressed them really quickly. I did not see any missed key presses when I pressed 10 sqrt's, 5 ones and "=" (16 keys) in about 5 seconds. When I sped up and pressed them within approximately 4-4.5 seconds it would sometimes only register 3 or 4 of the ones instead of 5. This seems very responsive to me, at least with this sequence.