WP34S Rectangular/Polar (Suggested Change)

04062014, 07:35 PM
(This post was last modified: 04062014 08:48 PM by BarryMead.)
Post: #5




RE: WP34S Rectangular/Polar (Suggested Change)
Walter:
Because the Rectangular/Polar conversions operate on the Atomic Unit(X,Y) much like complex operations do. Both X and Y are of equal importance so saving only X (last x) only saves half of the information lost during the operation. Even though the operation can be reversed by selecting it's opposite function the end result will be reduced modulo (2Pi) in radians mode or modulo (360) in degrees mode, so there is a true loss of information. The Atomic nature of the X/Y, Range/Angle pair is even more apparent now that the new display shows the pair of numbers after the Polar/Rectangular operations. Many other HP calculators show range/angle, X/Y on the same line and treat them as a single entity much like a complex number. Obviously the WP34S breaks complex numbers into two parts, but saves both parts in L (and I). It just seems logical to save both parts of the twopart Rectangular/Polar objects as well. I just looked through the manual, and it appears that there is no mention of lastX behavior regarding Polar/Rectangular operations (at least not in the IOP). There may be a reference somewhere else in the manual that I didn't see. Does this help? 

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