From: hgabert on 9 Feb 2010 13:40 A graph of 'RE(V(X))' or 'IM(V(X))' results in incorrect displays of the graphs for X<0 (not defined for RE, and 0 for IM). (V is the sqrt symbol). This is also wrong in the table app. I tried various flag settings (115, 119, 128), but to no avail. Also, 'RE(V(X))' { X 2 }  doesn't work correctly, if flag 128 is set. The result should be 0, but what is returned is V2. And 'IM(V(X))' { X 2 }  returns 0, but what should be returned is V2.
From: JohnnySavs on 10 Feb 2010 16:56 According to the advanced user's ref guide: "If the argument is an array, IM returns a real array, the elements of which are equal to the imaginary parts of the corresponding elements of the argument array. If the argument array is real, all of the elements of the result array are zero." Similar for RE(). Essentially, IM() and RE() are looking for paired entries. Perhaps you can write some function to output (1.41,1) instead of 1.41*i, etc?
From: hgabert on 10 Feb 2010 18:20 On Feb 10, 2:56 pm, JohnnySavs <jms...(a)gmail.com> wrote: > According to the advanced user's ref guide: > > "If the argument is an array, IM returns a real array, the elements of > which are equal to the > imaginary parts of the corresponding elements of the argument array. > If the argument array is > real, all of the elements of the result array are zero." > > Similar for RE(). > > Essentially, IM() and RE() are looking for paired entries. Perhaps > you can write some function to output (1.41,1) instead of 1.41*i, etc? I don't think you understand. Please read again what I posted. Try graphing 'RE(V(X))', V being the square root symbol. What do you get for X<0? Undefined? That's what's wrong. This has nothing to do with arrays, by the way.
From: HM on 11 Feb 2010 02:34 On 11 Feb, 00:20, "hgab...(a)xmission.com" <hgab...(a)xmission.com> wrote: > > I don't think you understand. Please read again what I posted. Try > graphing 'RE(V(X))', V being the square root symbol. What do you get > for X<0? Undefined? That's what's wrong. > > This has nothing to do with arrays, by the way. Graphing this program in RPN mode works OK: << X 0.5 ^ RE >>
From: Andreas Möller on 11 Feb 2010 03:27 Hello, just a thought, I have not tried it but if > << X 0.5 ^ RE >> works which is using real numbers (the numbers with a dot, even if you are using a real interger) than how does 'RE(V(X))' or 'IM(V(X))' works if you feed it with real numbers (e.g. 2. and not 2) or if you set system flag 105 ? If this works than simply the 'Convert ZINT to a real' code has been forgoten. Regards, Andreas http://www.software49g.gmxhome.de/

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