HP Prime Miscalculating
11-06-2015, 07:55 AM
Post: #24
 parisse Senior Member Posts: 1,243 Joined: Dec 2013
RE: HP Prime Miscalculating
(10-31-2015 10:50 AM)Vtile Wrote:  If the calculator is in exact mode set by user the CAS should behave according to that, while it is mathematically unorthodox solving answers like if user were using exact representation of given value instead of decimal value. In other words calculators CAS should expand (with silence or noting that "Unorthodox numerical format detected correcting user careless behaviour") the floating points to (36/10)²−4×(324/100) even if the user were typing the numbers in decimal format.
You misunderstand what the exact setting means. In CAS, you can perform exact *and* approx computations. If exact mode is set, the kind of computation is determined by the input (exact input, exact computation, approx input, approx computation). If approx mode is set, it means that all entries are considered as approx, even if they look like exact (in other words an evalf is done on the arguments).
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 Messages In This Thread HP Prime Miscalculating - luc4as - 10-23-2015, 02:35 AM RE: HP Prime Miscalculating - Joe Horn - 10-23-2015, 05:41 AM RE: HP Prime Miscalculating - retoa - 10-24-2015, 12:48 PM RE: HP Prime Miscalculating - parisse - 10-25-2015, 09:13 AM RE: HP Prime Miscalculating - Tim Wessman - 10-23-2015, 02:54 PM RE: HP Prime Miscalculating - retoa - 10-23-2015, 04:43 PM RE: HP Prime Miscalculating - Tim Wessman - 10-23-2015, 04:54 PM RE: HP Prime Miscalculating - Archanus - 10-23-2015, 07:38 PM RE: HP Prime Miscalculating - Nigel (UK) - 10-23-2015, 10:12 PM RE: HP Prime Miscalculating - Wes Loewer - 11-01-2015, 01:16 PM RE: HP Prime Miscalculating - Vtile - 11-01-2015, 02:05 PM RE: HP Prime Miscalculating - Wes Loewer - 11-04-2015, 05:57 PM RE: HP Prime Miscalculating - Vtile - 11-04-2015, 08:36 PM RE: HP Prime Miscalculating - CyberAngel - 09-02-2018, 04:32 PM RE: HP Prime Miscalculating - retoa - 10-23-2015, 09:33 PM RE: HP Prime Miscalculating - retoa - 10-23-2015, 10:04 PM RE: HP Prime Miscalculating - Archanus - 10-24-2015, 02:20 AM RE: HP Prime Miscalculating - parisse - 10-24-2015, 06:37 AM RE: HP Prime Miscalculating - dan_h - 10-24-2015, 02:14 PM RE: HP Prime Miscalculating - cyrille de brébisson - 10-26-2015, 06:25 AM RE: HP Prime Miscalculating - retoa - 10-30-2015, 01:34 PM RE: HP Prime Miscalculating - parisse - 10-31-2015, 06:34 AM RE: HP Prime Miscalculating - Vtile - 10-31-2015, 10:50 AM RE: HP Prime Miscalculating - Joe Horn - 11-01-2015, 02:12 AM RE: HP Prime Miscalculating - parisse - 11-06-2015 07:55 AM

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