HP 12c Platinum Virtual Calculator Trigs (emulator state file)

01252015, 11:38 PM
Post: #1




HP 12c Platinum Virtual Calculator Trigs (emulator state file)
HP12C Platinum keystrokes: 9 R/S g GTO 090 R/S g GTO 100 R/S g GTO 178 R/S g GTO 157 R/S g GTO 137 R/S HP15C keystrokes: 9 SIN COS TAN g TAN¹ g COS¹ g SIN¹ More information and instructions here. Link to HP Emulators, including the HP 12c Virtual Calculator: http://www.calculatriceshp.com/index.ph...emulateurs (Thanks, Franz!) Steps 277 through 399 are optional and can be deleted if necessary (in this case change line 268 to GTO 000). 12C_Platinum_Trigs.zip: Same as the US (THEM?:) version, except that DECIMAL POINT IS COMMA. 

01262015, 09:07 AM
Post: #2




RE: HP 12c Platinum Virtual Calculator Trigs (emulator state file)
How do these trig functions compare to Valentin Albillo's?
(http://www.hpcc.org/datafile/hp12/12c_Tr...ctions.pdf) 

01262015, 11:47 AM
(This post was last modified: 01262015 11:48 AM by Gerson W. Barbosa.)
Post: #3




RE: HP 12c Platinum Virtual Calculator Trigs (emulator state file)
(01262015 09:07 AM)EdS2 Wrote: How do these trig functions compare to Valentin Albillo's? Fast and Accurate Trigonometric Functions on the HP12C Platinum  Angle modes (DEG, RAD, GRAD);  The stack register Y is preserved;  Wider input range while keeping the same accuracy (SIN, COS, TAN: x < 1E12 degrees);  All functions are computed independently;  Mostly fixed execution times regardless of the arguments;  More accurate results (mainly because the HP 12c Platinum doesn't round intermediate results to 10 digits);  Faster method (Minimax polynomial rather than Taylor series);  At least 276 steps long, plus 15 registers;  It works on the HP 12c Platinum only. Valentin was limited to only 99 steps however, so his achievement is quite remarkable. I wonder what he could have done with four times more programming steps! (He would never need that much, in the first place). Regards, Gerson. 

01262015, 10:30 PM
Post: #4




RE: HP 12c Platinum Virtual Calculator Trigs (emulator state file)
Thanks! Just the degrees mode could be a crucial advantage.


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