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![](../galerie/icones/forensics.png) |
"Forensics" test |
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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 |
SIN | 0.15643446504023086901010531946717 |
COS | 0.99999627274288502411751620501135 |
TAN | 0.017454999855488660791394140928348 |
ATAN | 0.99999627274288502411751620501135 |
ACOS | 0.15643446504023086901010531946717 |
ASIN | 9 |
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)
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![](../galerie/icones/icliv05.png) |
The programs |
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![](../galerie/calcs/SR-52.png) SR-52 | ![](../galerie/tests/forensic/for_SR-52.jpg) |
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![](../galerie/calcs/SR-56.png) SR-56 | ![](../galerie/tests/forensic/for_SR-56.jpg) |
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![](../galerie/calcs/TI-53.png) TI-53 | ![](../galerie/tests/forensic/for_TI-53.jpg) |
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![](../galerie/calcs/TI-53slanted.png) TI-53slanted | ![](../galerie/tests/forensic/for_TI-53slanted.jpg) |
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![](../galerie/calcs/TI-55.png) TI-55 | ![](../galerie/tests/forensic/for_TI-55.jpg) |
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![](../galerie/calcs/TI-55II.png) TI-55II | ![](../galerie/tests/forensic/for_TI-55II.jpg) |
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![](../galerie/calcs/TI-55III.png) TI-55III | ![](../galerie/tests/forensic/for_TI-55III.jpg) |
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![](../galerie/calcs/TI-56.png) TI-56 | ![](../galerie/tests/forensic/for_TI-56.jpg) |
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![](../galerie/calcs/TI-57.png) TI-57 | ![](../galerie/tests/forensic/for_TI-57.jpg) |
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![](../galerie/calcs/TI-57II.png) TI-57II | ![](../galerie/tests/forensic/for_TI-57II.jpg) |
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![](../galerie/calcs/TI-57LCD.png) TI-57LCD | ![](../galerie/tests/forensic/for_TI-57LCD.jpg) |
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![](../galerie/calcs/TI-58C.png) TI-58C | ![](../galerie/tests/forensic/for_TI-58C.jpg) |
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![](../galerie/calcs/TI-59.png) TI-59 | ![](../galerie/tests/forensic/for_TI-59.jpg) |
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![](../galerie/calcs/TI-60.png) TI-60 | ![](../galerie/tests/forensic/for_TI-60.jpg) |
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![](../galerie/calcs/TI-60X.png) TI-60X | ![](../galerie/tests/forensic/for_TI-60X.jpg) |
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![](../galerie/calcs/TI-62.png) TI-62 | ![](../galerie/tests/forensic/for_TI-62.jpg) |
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![](../galerie/calcs/TI-65.png) TI-65 | ![](../galerie/tests/forensic/for_TI-65.jpg) |
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![](../galerie/calcs/TI-66.png) TI-66 | ![](../galerie/tests/forensic/for_TI-66.jpg) |
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![](../galerie/calcs/TI-67.png) TI-67 | ![](../galerie/tests/forensic/for_TI-67.jpg) |
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![](../galerie/calcs/TI-68.png) TI-68 | ![](../galerie/tests/forensic/for_TI-68.jpg) |
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![](../galerie/calcs/TI-73explorer.png) TI-73explorer | ![](../galerie/tests/forensic/for_TI-73explorer.jpg) |
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![](../galerie/calcs/TI-76fr.png) TI-76fr | ![](../galerie/tests/forensic/for_TI-76fr.jpg) |
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![](../galerie/calcs/TI-80.png) TI-80 | ![](../galerie/tests/forensic/for_TI-80.jpg) |
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![](../galerie/calcs/TI-81.png) TI-81 | ![](../galerie/tests/forensic/for_TI-81.jpg) |
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![](../galerie/calcs/TI-82.png) TI-82 | ![](../galerie/tests/forensic/for_TI-82.jpg) |
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![](../galerie/calcs/TI-82Advanced.png) TI-82Advanced | ![](../galerie/tests/forensic/for_TI-82Advanced.jpg) |
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![](../galerie/calcs/TI-82Plus.png) TI-82Plus | ![](../galerie/tests/forensic/for_TI-82Plus.jpg) |
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![](../galerie/calcs/TI-82Stats.png) TI-82Stats | ![](../galerie/tests/forensic/for_TI-82Stats.jpg) |
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![](../galerie/calcs/TI-82statsfr.png) TI-82statsfr | ![](../galerie/tests/forensic/for_TI-82statsfr.jpg) |
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![](../galerie/calcs/TI-83.png) TI-83 | ![](../galerie/tests/forensic/for_TI-83.jpg) |
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![](../galerie/calcs/TI-83Plus.png) TI-83Plus | ![](../galerie/tests/forensic/for_TI-83Plus.jpg) |
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![](../galerie/calcs/TI-83PlusSE.png) TI-83PlusSE | ![](../galerie/tests/forensic/for_TI-83PlusSE.jpg) |
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![](../galerie/calcs/TI-83PremiumCE.png) TI-83PremiumCE | ![](../galerie/tests/forensic/for_TI-83PremiumCE.jpg) |
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![](../galerie/calcs/TI-83plusfr.png) TI-83plusfr | ![](../galerie/tests/forensic/for_TI-83plusfr.jpg) |
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![](../galerie/calcs/TI-84PlusCE.png) TI-84PlusCE | ![](../galerie/tests/forensic/for_TI-84PlusCE.jpg) |
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![](../galerie/calcs/TI-84PlusCE-T.png) TI-84PlusCE-T | ![](../galerie/tests/forensic/for_TI-84PlusCE-T.jpg) |
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![](../galerie/calcs/TI-84PlusCSE.png) TI-84PlusCSE | ![](../galerie/tests/forensic/for_TI-84PlusCSE.jpg) |
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![](../galerie/calcs/TI-84PlusSE.png) TI-84PlusSE | ![](../galerie/tests/forensic/for_TI-84PlusSE.jpg) |
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![](../galerie/calcs/TI-84PlusT.png) TI-84PlusT | ![](../galerie/tests/forensic/for_TI-84PlusT.jpg) |
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![](../galerie/calcs/TI-84plus.png) TI-84plus | ![](../galerie/tests/forensic/for_TI-84plus.jpg) |
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![](../galerie/calcs/TI-84pocketfr.png) TI-84pocketfr | ![](../galerie/tests/forensic/for_TI-84pocketfr.jpg) |
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![](../galerie/calcs/TI-85.png) TI-85 | ![](../galerie/tests/forensic/for_TI-85.jpg) |
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![](../galerie/calcs/TI-86.png) TI-86 | ![](../galerie/tests/forensic/for_TI-86.jpg) |
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![](../galerie/calcs/TI-89.png) TI-89 | ![](../galerie/tests/forensic/for_TI-89.jpg) |
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![](../galerie/calcs/TI-89titanium.png) TI-89titanium | ![](../galerie/tests/forensic/for_TI-89titanium.jpg) |
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![](../galerie/calcs/TI-92.png) TI-92 | ![](../galerie/tests/forensic/for_TI-92.jpg) |
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![](../galerie/calcs/TI-95.png) TI-95 | ![](../galerie/tests/forensic/for_TI-95.jpg) |
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![](../galerie/calcs/TI-nspire.png) TI-nspire | ![](../galerie/tests/forensic/for_TI-nspire.jpg) |
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![](../galerie/calcs/TI-nspireCAS.png) TI-nspireCAS | ![](../galerie/tests/forensic/for_TI-nspireCAS.jpg) |
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![](../galerie/calcs/TI-nspireCX.png) TI-nspireCX | ![](../galerie/tests/forensic/for_TI-nspireCX.jpg) |
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![](../galerie/calcs/TI-nspireCXCAS.png) TI-nspireCXCAS | ![](../galerie/tests/forensic/for_TI-nspireCXCAS.jpg) |
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![](../galerie/calcs/TI-nspireCXII-T.png) TI-nspireCXII-T | ![](../galerie/tests/forensic/for_TI-nspireCXII-T.jpg) |
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![](../galerie/calcs/TI-nspireCXII-TCAS.png) TI-nspireCXII-TCAS | ![](../galerie/tests/forensic/for_TI-nspireCXII-TCAS.jpg) |
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![](../galerie/calcs/TI-nspireCXIICAS.png) TI-nspireCXIICAS | ![](../galerie/tests/forensic/for_TI-nspireCXIICAS.jpg) |
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![](../galerie/calcs/Voyage-200.png) Voyage-200 | ![](../galerie/tests/forensic/for_Voyage-200.jpg) |
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![](../galerie/calcs/HP-10C.png) HP-10C | ![](../galerie/tests/forensic/for_HP-10C.jpg) |
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![](../galerie/calcs/HP-11C.png) HP-11C | ![](../galerie/tests/forensic/for_HP-11C.jpg) |
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![](../galerie/calcs/HP-15C.png) HP-15C | ![](../galerie/tests/forensic/for_HP-15C.jpg) |
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![](../galerie/calcs/HP-20S.png) HP-20S | ![](../galerie/tests/forensic/for_HP-20S.jpg) |
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![](../galerie/calcs/HP-21S.png) HP-21S | ![](../galerie/tests/forensic/for_HP-21S.jpg) |
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![](../galerie/calcs/HP-25.png) HP-25 | ![](../galerie/tests/forensic/for_HP-25.jpg) |
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![](../galerie/calcs/HP-28C.png) HP-28C | ![](../galerie/tests/forensic/for_HP-28C.jpg) |
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![](../galerie/calcs/HP-28S.png) HP-28S | ![](../galerie/tests/forensic/for_HP-28S.jpg) |
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![](../galerie/calcs/HP-29C.png) HP-29C | ![](../galerie/tests/forensic/for_HP-29C.jpg) |
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![](../galerie/calcs/HP-30B.png) HP-30B | ![](../galerie/tests/forensic/for_HP-30B.jpg) |
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![](../galerie/calcs/HP-30S.png) HP-30S | ![](../galerie/tests/forensic/for_HP-30S.jpg) |
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![](../galerie/calcs/HP-32S.png) HP-32S | ![](../galerie/tests/forensic/for_HP-32S.jpg) |
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![](../galerie/calcs/HP-32SII.png) HP-32SII | ![](../galerie/tests/forensic/for_HP-32SII.jpg) |
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![](../galerie/calcs/HP-33E.png) HP-33E | ![](../galerie/tests/forensic/for_HP-33E.jpg) |
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![](../galerie/calcs/HP-33S.png) HP-33S | ![](../galerie/tests/forensic/for_HP-33S.jpg) |
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![](../galerie/calcs/HP-34C.png) HP-34C | ![](../galerie/tests/forensic/for_HP-34C.jpg) |
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![](../galerie/calcs/HP-35S.png) HP-35S | ![](../galerie/tests/forensic/for_HP-35S.jpg) |
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![](../galerie/calcs/HP-38G.png) HP-38G | ![](../galerie/tests/forensic/for_HP-38G.jpg) |
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![](../galerie/calcs/HP-39G.png) HP-39G | ![](../galerie/tests/forensic/for_HP-39G.jpg) |
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![](../galerie/calcs/HP-39GII.png) HP-39GII | ![](../galerie/tests/forensic/for_HP-39GII.jpg) |
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![](../galerie/calcs/HP-39GS.png) HP-39GS | ![](../galerie/tests/forensic/for_HP-39GS.jpg) |
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![](../galerie/calcs/HP-39Gplus.png) HP-39Gplus | ![](../galerie/tests/forensic/for_HP-39Gplus.jpg) |
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![](../galerie/calcs/HP-40G.png) HP-40G | ![](../galerie/tests/forensic/for_HP-40G.jpg) |
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![](../galerie/calcs/HP-40GS.png) HP-40GS | ![](../galerie/tests/forensic/for_HP-40GS.jpg) |
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![](../galerie/calcs/HP-41C.png) HP-41C | ![](../galerie/tests/forensic/for_HP-41C.jpg) |
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![](../galerie/calcs/HP-42S.png) HP-42S | ![](../galerie/tests/forensic/for_HP-42S.jpg) |
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![](../galerie/calcs/HP-48G.png) HP-48G | ![](../galerie/tests/forensic/for_HP-48G.jpg) |
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![](../galerie/calcs/HP-48GII.png) HP-48GII | ![](../galerie/tests/forensic/for_HP-48GII.jpg) |
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![](../galerie/calcs/HP-48GX.png) HP-48GX | ![](../galerie/tests/forensic/for_HP-48GX.jpg) |
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![](../galerie/calcs/HP-48S.png) HP-48S | ![](../galerie/tests/forensic/for_HP-48S.jpg) |
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![](../galerie/calcs/HP-48SX.png) HP-48SX | ![](../galerie/tests/forensic/for_HP-48SX.jpg) |
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![](../galerie/calcs/HP-49G.png) HP-49G | ![](../galerie/tests/forensic/for_HP-49G.jpg) |
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![](../galerie/calcs/HP-49Gplus.png) HP-49Gplus | ![](../galerie/tests/forensic/for_HP-49Gplus.jpg) |
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![](../galerie/calcs/HP-50G.png) HP-50G | ![](../galerie/tests/forensic/for_HP-50G.jpg) |
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![](../galerie/calcs/HP-55.png) HP-55 | ![](../galerie/tests/forensic/for_HP-55.jpg) |
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![](../galerie/calcs/HP-97.png) HP-97 | ![](../galerie/tests/forensic/for_HP-97.jpg) |
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![](../galerie/calcs/HP-9G.png) HP-9G | ![](../galerie/tests/forensic/for_HP-9G.jpg) |
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![](../galerie/calcs/HP-Prime.png) HP-Prime | ![](../galerie/tests/forensic/for_HP-Prime.jpg) |
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![](../galerie/calcs/PX15C.png) PX15C | ![](../galerie/tests/forensic/for_PX15C.jpg) |
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![](../galerie/calcs/PX41C.png) PX41C | ![](../galerie/tests/forensic/for_PX41C.jpg) |
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![](../galerie/calcs/PX41CX.png) PX41CX | ![](../galerie/tests/forensic/for_PX41CX.jpg) |
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![](../galerie/calcs/WP-34S.png) WP-34S | ![](../galerie/tests/forensic/for_WP-34S.jpg) |
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![](../galerie/calcs/DM42.png) DM42 | ![](../galerie/tests/forensic/for_DM42.jpg) |
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![](../galerie/icones/result.png) |
The results |
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Calculator | displayed | Internal |
SR-52 | 9.000004661 | 9.00000466131 |
TI-58C | 9.000004661 | 9.000004661314 |
TI-58 | 9.000004661 | 9.000004661314 |
TI-59 | 9.000004661 | 9.000004661314 |
TI-66 | 9.000002295 | 9.000002294775 |
TI-95 | 8.999999738 | 8.999999738296 |
SR-56 | 9.000004661 | 9.00000466131 |
TI-57 | 9.0047464 | 9.0047463834 |
EC-4000 | 9.0047464 | 9.0047463834 |
TI-57 LCD | 9.1146406 | 9.114640577 |
TI-57 II | 9.1146406 | 9.114640577 |
TI-62 Galaxy | 9.00044229369 | 9.00044229369 |
The MBA | (*) | (*) |
TI-42 MBA | (*) | (*) |
BA-55 | (*) | (*) |
BA-54 | (*) | (*) |
TI-55 | 9.0077265 | 9.007726486 |
TI-55 II | 9.1146406 | 9.114640577 |
TI-55 III | 9.1770871 | 9.177087088 |
TI-53 slimline | 9.1770871 | 9.177087088 |
TI-53 slanted | 9.1146406 | 9.114640577 |
TI-56 | 9.11464058 | 9.114640577 |
TI-65 | 9.000442294 | 9.00044229369 |
TI-68 | 8.999999008 | 8.999999007884 |
TI-60 | 9.000442294 | 9.00044229369 |
TI-60X | 8.999999008 | 8.999999008 |
TI-67 Galaxy | 8.999999008 | 8.999999007884 |
TI-73 Explorer | 8.99999997 | 8.9999999695957 |
TI-76 .fr | 8.99999997 | 8.9999999695957 |
TI-80 | 8.999999008 | 8.999999007884 |
TI-81 | 8.999999617 | 8.9999999616566 |
TI-82 | 8.99999997 | 8.9999999695957 |
TI-82 Stats.fr | 8.99999997 | 8.9999999695957 |
TI-82 Stats | 8.99999997 | 8.9999999695957 |
TI-82 Plus | 8.99999997 | 8.9999999695957 |
TI-82 Advanced | 8.99999997 | 8.9999999695957 |
TI-83 | 8.99999997 | 8.9999999695957 |
TI-83 Plus.fr | 8.99999997 | 8.9999999695957 |
TI-83 Plus | 8.99999997 | 8.9999999695957 |
TI-83 Plus SE | 8.99999997 | 8.9999999695957 |
TI-84 Plus | 8.99999997 | 8.9999999695957 |
TI-84 Plus T | 8.99999997 | 8.9999999695957 |
TI-84 Plus SE | 8.99999997 | 8.9999999695957 |
TI-84 Plus C SE | 8.99999997 | 8.9999999695957 |
TI-84 Pocket.fr | 8.99999997 | 8.9999999695957 |
TI-85 | 8.9999999696 | 8.9999999695957 |
TI-86 | 8.9999999696 | 8.9999999695957 |
TI-89 | 8.99999998177 | 8.9999999817692 |
TI-89 Titanium | 8.99999998177 | 8.9999999817692 |
TI-92 | 8.99999998177 | 8.999999981769 |
Voyage 200 | 8.99999998177 | 8.9999999817692 |
TI-nspire | 8.99999998177 | 8.9999999817691 |
TI-nspire CAS | 8.99999998177 | 8.9999999817691 |
TI-nspire CX | 8.99999998177 | 8.9999999817691 |
TI-nspire CX CAS | 8.99999998177 | 8.9999999817691 |
TI-nspire CX II-T | 8.99999998177 | 8.9999999817691 |
TI-nspire CX II-T CAS | 8.99999998177 | 8.9999999817691 |
TI-83 PremiumCE | 8.99999997 | 8.9999999695957 |
TI-84 Plus CE-T | 8.99999997 | 8.9999999695957 |
HP 9G | 9. | 9. |
HP-20S | 8.99999864267 | 8.99999864267 |
HP-21S | 8.99999864267 | 8.99999864267 |
HP-30b | 8.99999864267 | 8.99999864267 |
HP 30S | 9. | 9. |
HP-32S | 8.99999864267 | 8.99999864267 |
HP-32S II | 8.99999864267 | 8.99999864267 |
HP-33S | 8.99999986001 | 8.99999986001 |
HP-35S | 8.99999986001 | 8.99999986001 |
HP 38G | 8.99999864267 | 8.99999864267 |
HP 39G | 8.99999864267 | 8.99999864267 |
HP 39G+ | 8.99999864267 | 8.99999864267 |
HP-39G II | 8.99999864267 | 8.99999864267 |
HP 39GS | 8.99999864267 | 8.99999864267 |
HP 40G | 8.99999864267 | 8.99999864267 |
HP 40GS | 8.99999864267 | 8.99999864267 |
HP 11C | 9.000417403 | 9.000417403 |
HP-12C | (*) | (*) |
HP-12C Platinum | (*) | (*) |
HP-12C P. Silver | (*) | (*) |
HP-15C | 9.9000417403 | 9.9000417403 |
HP 25 | 9.004076649 | 9.004076649 |
HP 33E | 9.000417403 | 9.000417403 |
HP 34C | 9.000417403 | 9.000417403 |
HP 55 | 9.004076898 | 9.004076898 |
HP 28S | 8.99999864267 | 8.99999864267 |
HP 28C | 8.99999864267 | 8.99999864267 |
HP-41C | 9.9000417403 | 9.9000417403 |
HP-42S | 8.99999864267 | 8.99999864267 |
HP 48SX | 8.99999864267 | 8.99999864267 |
HP 48S | 8.99999864267 | 8.99999864267 |
HP 48G | 8.99999864267 | 8.99999864267 |
HP-49G | 8.99999864267 | 8.99999864267 |
HP 49G+ | 8.99999864267 | 8.99999864267 |
HP 50G | 8.99999864267 | 8.99999864267 |
HP Prime | 8.99999864267 | 8.99999864267 |
WP 34S | 9.00000000003 | 9.000000000029361 |
PX15C | 9.000417403 | 9.000417403 |
PX41C | 9.000417403 | 9.000417403 |
DM42 | 9.00000000000 | 8.999999999999999999999999999937534 |
(See Calculator Integrated Circuits Forensics by DATAMATH)
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(*) 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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