Question on complex arithmetic with 15c - Printable Version +- HP Forums ( https://www.hpmuseum.org/forum)+-- Forum: HP Calculators (and very old HP Computers) ( /forum-3.html)+--- Forum: General Forum ( /forum-4.html)+--- Thread: Question on complex arithmetic with 15c ( /thread-6577.html) |

Question on complex arithmetic with 15c - lemontea - 07-18-2016 07:19 PM
Hi all, I read this post http://www.hpmuseum.org/cgi-sys/cgiwrap/hpmuseum/archv018.cgi?read=137175 but don't understand it! :-) If I type in that program, can someone explain how do I use it for calculating with complex numbers? (I am calculating electrical impedance so just need to work in two dimensions with the "a + jb" format; I do have a complex number RPN app on my iPhone but it would be handier to grab my 15c on the table and do it). Thanks! RE: Question on complex arithmetic with 15c - Harald - 07-18-2016 08:51 PM
The 15c handles complex numbers pretty well. Unless you need the fuctions added by that program, you don't need it. Just set flag 8 and all built in functions are now complex. You can edit real and imaginary part using the re <> im button. The 15c manual is availabĂ¶e online from hp an describes all this in detail. RE: Question on complex arithmetic with 15c - lemontea - 07-19-2016 03:27 AM
OK thanks. Now that you mention it, it rings a little bell. Will check the manual. RE: Question on complex arithmetic with 15c - Csaba Tizedes - 07-19-2016 12:14 PM
(07-18-2016 07:19 PM)lemontea Wrote: I am calculating electrical impedance Pls post the example here! Thnx! Csaba |