A new HP-67 Simulator for the iPhone
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05-11-2016, 01:38 AM
Post: #14
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RE: A new HP-67 Simulator for the iPhone
(05-10-2016 07:20 PM)Gerson W. Barbosa Wrote: If Vintage mode is meant to be as faithful as possible, perhaps you would like to know that X is not saved in last X for arguments equal to 0 or -1 for SIN⁻¹, COS⁻¹ and TAN⁻¹, according to the manual addendum (I don't have a real HP-67 to check this out). A minor trigonometric bug is also mentioned, but this should should better be ignored for ever. Does not appear to be true on a real 67: 0, [g][4] (=ASIN) => 0.00 [h][0] (=Last-X) => 0.00 -1, [g][4] (=ASIN) => -90.00 [h][0] (=Last-X) => -1.00 -1, [g][5] (=ACOS) => 180.00 [h][0] (=LAST-X) => -1.00 Perhaps the addendum note only applies to some limited range of s/n? Mine is 1812A01611. --Bob Prosperi |
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