Casio fx-991EX vs Hp 50g speed difference
07-26-2018, 03:01 AM
Post: #16
 Carsen Member Posts: 204 Joined: Jan 2017
RE: Casio fx-991EX vs Hp 50g speed difference
(07-25-2018 10:13 PM)Albert Chan Wrote:  For transformed integral, it only take half the time ?

No. It took 0.51 seconds to solve the SIN(X) integral symbolically (This time is found in post #11 in this thread. I apologize for not defining what integral I evaluated in that post). On the other hand, it took 1.7 seconds to solve the transformed SIN(X) integral symbolically (This time is found in post #14 in this thread). Both of them returned the same answer of -(COS(200)-1).

(07-25-2018 10:13 PM)Albert Chan Wrote:  And, compare against 1 - cos(200), more accurate ?

I would say that 1-COS(200) has the same accuracy as -(COS(200)-1). They both are the same.

(07-25-2018 10:13 PM)Albert Chan Wrote:  Is it tested on the same calculator ?

Yes. All is tested on the same HP 50g.

(07-25-2018 10:13 PM)Albert Chan Wrote:  What if it were applied not just to periodic function, but others ?
Say, this thread original post ?

$$\int_0^{500}e^{-x}dx$$ = $$\int_{-1}^{1}375(1-u^2) e^{-(125u (3 - u^2) + 250)} du$$

Same as the first integral of SIN(X). Symbolically, the 50g solves the integral e^-x in .76 seconds, while it solves its transformed counterpart in 2.84 seconds. Again, both get the same answer of (e^500-1)/e^500. Here are some pictures of my results.

Attached File(s) Thumbnail(s)

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 Messages In This Thread Casio fx-991EX vs Hp 50g speed difference - Tugdual - 07-13-2018, 08:50 PM RE: Casio fx-991EX vs Hp 50g speed difference - StephenG1CMZ - 07-13-2018, 10:36 PM RE: Casio fx-991EX vs Hp 50g speed difference - Carsen - 07-13-2018, 11:13 PM RE: Casio fx-991EX vs Hp 50g speed difference - Thomas Okken - 07-14-2018, 01:45 AM RE: Casio fx-991EX vs Hp 50g speed difference - Albert Chan - 07-14-2018, 03:17 AM RE: Casio fx-991EX vs Hp 50g speed difference - pier4r - 07-14-2018, 10:27 AM RE: Casio fx-991EX vs Hp 50g speed difference - ijabbott - 07-14-2018, 03:10 PM RE: Casio fx-991EX vs Hp 50g speed difference - Tugdual - 07-16-2018, 07:07 AM RE: Casio fx-991EX vs Hp 50g speed difference - brickviking - 07-18-2018, 04:28 AM RE: Casio fx-991EX vs Hp 50g speed difference - Albert Chan - 07-25-2018, 01:50 AM RE: Casio fx-991EX vs Hp 50g speed difference - Albert Chan - 07-25-2018, 12:55 PM RE: Casio fx-991EX vs Hp 50g speed difference - Carsen - 07-25-2018, 02:44 AM RE: Casio fx-991EX vs Hp 50g speed difference - Albert Chan - 07-25-2018, 06:32 PM RE: Casio fx-991EX vs Hp 50g speed difference - Carsen - 07-25-2018, 08:07 PM RE: Casio fx-991EX vs Hp 50g speed difference - Albert Chan - 07-25-2018, 10:13 PM RE: Casio fx-991EX vs Hp 50g speed difference - Carsen - 07-26-2018 03:01 AM RE: Casio fx-991EX vs Hp 50g speed difference - Carsen - 07-26-2018, 04:53 PM RE: Casio fx-991EX vs Hp 50g speed difference - Albert Chan - 07-26-2018, 03:28 AM RE: Casio fx-991EX vs Hp 50g speed difference - Albert Chan - 07-26-2018, 07:08 PM RE: Casio fx-991EX vs Hp 50g speed difference - gomefun2 - 09-03-2018, 07:40 PM

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