HP Forum Archive 21

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HP 34S complex # problem Message #1 Posted by Richard Berler on 17 Feb 2013, 6:03 p.m. I can't get the hang of working complex # problems on the 34S. The 15C manual has a problem that is intuitive on that platform and on the 35S, but not for me on the 34S: 2i(-8+6i)^3/(4-2sqrt5i)*(2-4sqrt5i) The answer is ~ 9.3982-35.1344i Thanks for any help!

Re: HP 34S complex # problem Message #2 Posted by Gerson W. Barbosa on 17 Feb 2013, 6:54 p.m., in response to message #1 by Richard Berler Assuming you mean 2i(-8+6i)^3/((4-2sqrt(5)i)*(2-4sqrt(5)i)) and stack size is set to 8, SSIZE8 then a possible keystroke sequence is 2 ENTER 0 ENTER 6 ENTER 8 +/- ENTER 0 ENTER 3 CPX y^x CPX * 5 SQRT 2 +/- * 4 ENTER 5 SQRT 4 +/- * 2 CPX * CPX / This returns --> 9.39820200952 x<>y --> -35.1343865997 HTH Edited: 17 Feb 2013, 6:57 p.m.

Re: HP 34S complex # problem Message #3 Posted by Richard Berler on 17 Feb 2013, 11:01 p.m., in response to message #2 by Gerson W. Barbosa Thanks! I think that I can get comfortable with this.

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