Casio BQ-1100

[Maximilian Hohmann]

Hello!

(03-05-2021 03:47 PM)Leviset Wrote:  Do I take it that the 4 dots with one flashing on the number scale 1 - 31 scale on the bottom of the calculator screen are to do with daily Circadian Rhythms?

No, if I understand it correctly, the dots are the calendar for one month. The four steady dots indicate the sundays of that month and the flashing one is the current day. The day of week must be counted "manually" starting with the preceding sunday.

The biorythm

(nitpicking begins: The "circadian rhythm" is a scientifically proven daily curve which shows one's efficiency, whereas the "biorhythm" is a totally unscientific concept according to which there are three bodily properties: physical, emotional and intellectual whose values oscillate with sinusoidal curves between +1 (= good) and -1 (= bad)) starting from one's day of birth but with different periods -
nitpicking over :-) )

on this computer is indicated with a display of three numbers: e.g. "20 12 19" which stand for physical, emotional and intellectual. Using these numbers it is your task to follow the three curves printed underneath the display and read the appropriate value. The blue curve is the one for pysical, the red one for emotional and the green one for intellectual.

To compute your biorhythm for today you have to enter your birthday like this (after having set the date first):
AC
YY (if between 1901 and 1999) or YYYY (if between 2000 and 2099)
followed by "Date"
MM
followed by "Date"
DD
followed by "BIO" (note: This is almost like setting the calendar, only that you don't press SET but BIO as the last step)

The calculator will then diplay the three X-values of the curves as described above.

If you want to calculate your biorhythm for a different day than today (e.g. if you want to see if your physical strength will be good at the day of the Ironman triathlon ;-) ) you proceed as follows:
Enter your birthday as before, but press "-" (minus) instead of "BIO" at the end, then enter the day for which you want to display your values and press "BIO".

Have fun playing with it!

Regards
Max

NB: Some people write programs to compute the Gamma function to test their programmabale calculators. I instead have programmed countless biorhythm algorithms on different calculators in order to try them out (to be honest, it is rather trivial: You calculate the number of days between two dates and divide that by the periods of the three bodily properties). Starting with my Ti59 back at school. I even did performed some "science" comparing to computed numbers with my actual state and found zero correlation...