CASIO fx-CG50
03-03-2018, 03:54 PM
Post: #6
 Eddie W. Shore Senior Member Posts: 1,246 Joined: Dec 2013
RE: CASIO fx-CG50
(03-02-2018 10:08 PM)lrdheat Wrote:  Calling Eddie Shore...I got the CASIO fx-CG50. Nice unit. I noticed that in your blog, you were happy to see that it could deal with complex numbers, even with trigonometric functions. I am not having success with that...how do I get this to work?

Unfortunately, trig functions of complex numbers no longer work. This probably a side result of the new OS (3.10.0212). I must have written my review before I upgraded the OS. I will note this in my review, thank you for catching this!

Why Casio why?

Trig functions with complex numbers will now have to use the work around (there are others):

sin (a+bi) = sin a cosh b + i cos a sinh b
cos (a +bi) = cos a cosh b - i sin a sinh b

Thankfully the ln and e^x functions still can work with complex numbers.
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 Messages In This Thread CASIO fx-CG50 - lrdheat - 03-02-2018, 10:08 PM RE: CASIO fx-CG50 - lrdheat - 03-02-2018, 10:15 PM RE: CASIO fx-CG50 - sacredcow - 03-03-2018, 02:31 AM RE: CASIO fx-CG50 - lrdheat - 03-03-2018, 06:16 AM RE: CASIO fx-CG50 - sacredcow - 03-03-2018, 09:25 AM RE: CASIO fx-CG50 - Eddie W. Shore - 03-03-2018 03:54 PM RE: CASIO fx-CG50 - lrdheat - 03-03-2018, 04:29 PM RE: CASIO fx-CG50 - ijabbott - 03-04-2018, 09:14 PM RE: CASIO fx-CG50 - Eddie W. Shore - 03-03-2018, 05:06 PM RE: CASIO fx-CG50 - ijabbott - 03-04-2018, 09:36 PM RE: CASIO fx-CG50 - lrdheat - 03-04-2018, 09:26 PM RE: CASIO fx-CG50 - lrdheat - 03-04-2018, 09:28 PM

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