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"Forensics" test
The "forensics" algorithm was invented by Mike Sebastian to quickly provide a comparison of the accuracy of scientific calculators.
It is a matter of applying the following calculation and observing the result obtained:
arcsin(arccos(arctan(tan(cos(sin(9))))))

(See "Calculator Forensics" by Mike Sebastian)


But... the precision of the calculation (number of decimal places after the decimal point) will influence the final result...
Example, with 33 decimal places:
9
SIN0.15643446504023086901010531946717
COS0.99999627274288502411751620501135
TAN0.017454999855488660791394140928348
ATAN0.99999627274288502411751620501135
ACOS0.15643446504023086901010531946717
ASIN9


So I used this simple formula to test every calculator I have.
But to take my first programming steps on most of them, I decided to enter the sequence arcsin(arccos(arctan(tan(cos(sin (9)))))) as a program.
On each calculator you must choose the "Degree" mode then start the program with RST followed by R/S . Except for calculators which can use program launch keys. (TI-58C, TI-59, TI-66, TI-95, TI-65)

The programs
Goto... (98)

TI-58C

The results
CalculatordisplayedInternal
 SR-529.0000046619.00000466131
 TI-58C9.0000046619.000004661314
 TI-589.0000046619.000004661314
 TI-599.0000046619.000004661314
 TI-669.0000022959.000002294775
 TI-958.9999997388.999999738296

 SR-569.0000046619.00000466131
 TI-579.00474649.0047463834
 EC-40009.00474649.0047463834
 TI-57 LCD9.11464069.114640577
 TI-57 II9.11464069.114640577
 TI-62 Galaxy9.000442293699.00044229369

 The MBA(*)(*)
 TI-42 MBA(*)(*)
 BA-55(*)(*)
 BA-54(*)(*)

 TI-559.00772659.007726486
 TI-55 II9.11464069.114640577
 TI-55 III9.17708719.177087088
 TI-53 slimline9.17708719.177087088
 TI-53 slanted9.11464069.114640577
 TI-569.114640589.114640577

 TI-659.0004422949.00044229369
 TI-688.9999990088.999999007884
 TI-609.0004422949.00044229369
 TI-60X8.9999990088.999999008
 TI-67 Galaxy8.9999990088.999999007884

 TI-73 Explorer8.999999978.9999999695957
 TI-76 .fr8.999999978.9999999695957
 TI-808.9999990088.999999007884
 TI-818.9999996178.9999999616566
 TI-828.999999978.9999999695957
 TI-82 Stats.fr8.999999978.9999999695957
 TI-82 Stats8.999999978.9999999695957
 TI-82 Plus8.999999978.9999999695957
 TI-82 Advanced8.999999978.9999999695957
 TI-838.999999978.9999999695957
 TI-83 Plus.fr8.999999978.9999999695957
 TI-83 Plus8.999999978.9999999695957
 TI-83 Plus SE8.999999978.9999999695957
 TI-84 Plus8.999999978.9999999695957
 TI-84 Plus T8.999999978.9999999695957
 TI-84 Plus SE8.999999978.9999999695957
 TI-84 Plus C SE8.999999978.9999999695957
 TI-84 Pocket.fr8.999999978.9999999695957
 TI-858.99999996968.9999999695957
 TI-868.99999996968.9999999695957
 TI-898.999999981778.9999999817692
 TI-89 Titanium8.999999981778.9999999817692
 TI-928.999999981778.999999981769
 Voyage 2008.999999981778.9999999817692
 TI-nspire8.999999981778.9999999817691
 TI-nspire CAS8.999999981778.9999999817691
 TI-nspire CX8.999999981778.9999999817691
 TI-nspire CX CAS8.999999981778.9999999817691
 TI-nspire CX II-T8.999999981778.9999999817691
 TI-nspire CX II-T CAS8.999999981778.9999999817691
 TI-83 PremiumCE8.999999978.9999999695957
 TI-84 Plus CE-T8.999999978.9999999695957

 HP 9G9.9.
 HP-20S8.999998642678.99999864267
 HP-21S8.999998642678.99999864267
 HP-30b8.999998642678.99999864267
 HP 30S9.9.
 HP-32S8.999998642678.99999864267
 HP-32S II8.999998642678.99999864267
 HP-33S8.999999860018.99999986001
 HP-35S8.999999860018.99999986001
 HP 38G8.999998642678.99999864267
 HP 39G8.999998642678.99999864267
 HP 39G+8.999998642678.99999864267
 HP-39G II8.999998642678.99999864267
 HP 39GS8.999998642678.99999864267
 HP 40G8.999998642678.99999864267
 HP 40GS8.999998642678.99999864267
 HP 11C9.0004174039.000417403
 HP-12C(*)(*)
 HP-12C Platinum(*)(*)
 HP-12C P. Silver(*)(*)
 HP-15C9.90004174039.9000417403
 HP 259.0040766499.004076649
 HP 33E9.0004174039.000417403
 HP 34C9.0004174039.000417403
 HP 559.0040768989.004076898
 HP 28S8.999998642678.99999864267
 HP 28C8.999998642678.99999864267
 HP-41C9.90004174039.9000417403
 HP-42S8.999998642678.99999864267
 HP 48SX8.999998642678.99999864267
 HP 48S8.999998642678.99999864267
 HP 48G8.999998642678.99999864267
 HP-49G8.999998642678.99999864267
 HP 49G+8.999998642678.99999864267
 HP 50G8.999998642678.99999864267
 HP Prime8.999998642678.99999864267

 WP 34S9.000000000039.000000000029361
 PX15C9.0004174039.000417403
 PX41C9.0004174039.000417403

 DM429.000000000008.999999999999999999999999999937534

(See Calculator Integrated Circuits Forensics by DATAMATH)


(*) The "The MBA", BA-55, BA-54... calculators could not be tested due to the absence of trigonometric functions (Sin, Cos, Tan) on these machines.






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