08-11-2007, 05:27 AM

As many of us know, the HP-35s offers easy entry of __new__ complex numbers from the keyboard, but is missing basic functionality for manipulating or dissassembling complex numbers, or for assembling them from previously-obtained values.

Here's a reasonable workaround for the complex-conjugate function (i.e., negation of the imaginary component):

The product of a complex number and its conjugate is its magnitude squared,

ZZ^{*} = |Z|^{2}

So, Z^{*} = |Z|^{2} / Z

With a complex number in the x-register,

ENTER

ABS

x^{2}

x<>y

/

will give its complex conjugate.

*Edited: 11 Aug 2007, 5:50 a.m. *