TI 36X Pro data pair limit...

[pier4r]

Sure, I can get the csv too (although only the last 6 months). But again I have to start the pc, excel, and so on (I don't like to keep the systems running unless they are servers). It is easier for the mind to use a calculator and the printouts (that in any case I get from Sparkasse) . After working with the computer all the day having a pause from retro illuminated screens is not bad too. It is a bit like crafting, and it takes max 10 minutes if I don't get too fancy.

There are several factors why some tool may be appropriate than another.

If I would be one keeping his mac/pc always running idle, because who cares about the energy consumption, and without the need to have a pause, say, using paper, then yes the calculator would be redundant.

Have you ever tried to draw a graph by hand (sure you did, but I mean recently)?
It is not only pleasant, at least for me I notice patterns better while I draw the thing. Spending a bit more active time on an action sometimes is positive. The computers can do a lot but insights come from active manipulation of data.
For example not only the sum of the expenses is interesting, but also the sum of the squares. The sum of the squares shows quickly if one spent a lot of money in few purchases instead of many little ones. I didn't realize this before computing it on the calc.

Anyway I still think that having too many registers may drain the battery faster and since few use them, the producers don't see the need to go past 100/200 registers. Indeed the old calculators, although more capable, use also more energy if I am not mistaken. Still 42 or 50 data points seems quite a little. The ti-34 from the 1987 keeps only the totals, but one can process how many data points one likes and then gets the stats back at least.

I mean graphing calculators can do way more but there is no way they can be powered by a micro solar cell.