HP 12c Platinum Virtual Calculator Trigs (emulator state file) - Printable Version +- HP Forums (https://www.hpmuseum.org/forum) +-- Forum: HP Calculators (and very old HP Computers) (/forum-3.html) +--- Forum: General Forum (/forum-4.html) +--- Thread: HP 12c Platinum Virtual Calculator Trigs (emulator state file) (/thread-2933.html) HP 12c Platinum Virtual Calculator Trigs (emulator state file) - Gerson W. Barbosa - 01-25-2015 11:38 PM HP-12C 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 HP-15C keystrokes: 9 SIN COS TAN g TAN-¹ g COS-¹ g SIN-¹ More information and instructions here. Link to HP Emulators, including the HP 12c Virtual Calculator: http://www.calculatrices-hp.com/index.php?page=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. RE: HP 12c Platinum Virtual Calculator Trigs (emulator state file) - EdS2 - 01-26-2015 09:07 AM How do these trig functions compare to Valentin Albillo's? (http://www.hpcc.org/datafile/hp12/12c_TrigonometryFunctions.pdf) RE: HP 12c Platinum Virtual Calculator Trigs (emulator state file) - Gerson W. Barbosa - 01-26-2015 11:47 AM (01-26-2015 09:07 AM)EdS2 Wrote:  How do these trig functions compare to Valentin Albillo's? (http://www.hpcc.org/datafile/hp12/12c_TrigonometryFunctions.pdf) Fast and Accurate Trigonometric Functions on the HP-12C 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. RE: HP 12c Platinum Virtual Calculator Trigs (emulator state file) - EdS2 - 01-26-2015 10:30 PM Thanks! Just the degrees mode could be a crucial advantage.