-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Frank Evans
>By the way, does anyone else still use a pocket calculator for sundial >calculations? Hi Frank and all, Programmable calculators got me started in the design of sundials. Twenty years ago I wrote a couple of programs for sundial design for TI 59 programmable calculators. These programs were distributed via the TI "Professional Program Exchange" (PPX 59). The programs calculated the design parameters for horizontal and vertical declining dials and used the print code to output a table of hour angles vs. time. As I confessed earlier I got stalled on reclining dials, but this is covered in the TI book "Sourcebook for Programmable Calculators" I also wrote a BASIC program for sundial design for the Timex Sinclair ZX1000. Remember those four chip wonders? In my desk drawer, beside the two slide rules, are four pocket calculators and two calculator watches, all with dead batteries. I continue to use a cheap little solar powered scientific calculator (TI-25X) for sundial calculations. Roger Bailey Walking Shadow Designs N 51 W 115 ps. I will be staying at this location for some time. There is too much stuff in the basement to move.
