TI 36X Pro data pair limit...

[pier4r]

(01-18-2019 12:13 AM)ijabbott Wrote:  On closer examination, the statistics data is retained when the calculator is turned off, but is cleared when switching modes (even when switching between 1-variable and 2-variable modes within the Statistics mode). Not all the modes retain data when powering off. For example, the Spreadsheet mode clears the data when powering off (even for automatic power off) or when switching modes. (I suppose Spreadsheet mode has its uses, but its volatility limits its usefulness somewhat!)

Same with sharp models. If one doesn't change mode the data is there (I know no stats mode losing data due to power off). The reset on change is due, I suppose, a design assumption: one has the registers used and assumes that if a user wants to switch, the data is not needed.

No idea about the spreadsheets mode as my calc doesn't have that functionality.

Quote:The early Casio scientifics only support summation based statistics (and only supported 1-variable statistics), storing the sum, the sum of squares, and the number of data, but not the individual data. This is like the EditOFF feature you mentioned. It saves storage space as only a few registers are needed to accumulate the data. It's enough to do standard deviation calculations, but there is no way to do any quantile calculations on the data.

the ti-34 from 1987 can do summation based statistics but on the sharp I didn't find away to emulate the same behavior. So for some edge cases (over 100 entries) the ti-34 can and the sharp can't. See how the design can affect functions.

(01-18-2019 07:04 AM)Dan Wrote:  I've got 14 and was starting to think I have too much stuff. Now I realise I have nothing.

Have you contacted the Guinness Book of Records? EDIT: Just did a search and it seems you need about 3000 more to beat your fellow countryman from Solingen

Impressive! What I was thinking is: those devices stored with love, will go waste when the other dies? I'll open a thread about it.