|
Symbolic Differentiation with 48g Hi, I am really confused. I own a HP48g for two month, but it was not possible for me to run a symbolic differenation. The example in the short manual for example: f(x)=5*x^2-6/x I started the function differentiate, entered the term 5*x^2-6/x in the field EXPR:, choose X in the field VAR and selected S... 7 May 2008 14:53
Questions about SD cards for 50G I was wondering what SD cards (brands and max capacity) work with the 50G? I tried to use the one that came with my camera but it doesn't work, I'm now looking for a new one. Is it true that the 50G only recognize upto 1GB cards? thanks for responses ... 7 May 2008 13:14
HP's award Winning Support Team Explains the ONe Year Warranty Here is an excerpt from a private email sent today to a would be HP50 seller explaining why, after talking to HP Calculator Support, I am unable to take a chance on the 50g which is being offered for resale. Basically, the logic is that all things considered, and having been burned once, it is too risky to pur... 7 May 2008 03:18
hpgcc and rpl-stack On 4 mai, 15:21, Claudio Lapilli <pleasedonts...(a)isp.com> wrote: Hello, On May 3, 5:59 am, tan66 <briancon_tan...(a)yahoo.fr> wrote: Hello I made a program with hpgcc which push and pop objects in/from the rpl stack. I also do some sat_poke on rpl objects onto the stack. Is the rpl adre... 6 May 2008 22:26
A bug and a related mini-challenge re LSQ [what's in a word?] On Sat, 03 May 2008 22:19:04 -0500, Rodger Rosenbaum wrote: [Eliminating the word "solution" from a discussion is] an unworkable solution. Linear algebra texts are going to continue to use the word "solution". The AUR and/or these newsgroup discussions are certainly free to offer discussions that can explai... 6 May 2008 22:26
Install libraries John Meyers wrote: [how to transfer files from computer to calculator] Thanks, John! -Joe- ... 6 May 2008 22:26
Emu48 for HP50G? Hi On 2008-05-02 09:05:29 +1000, Claudio Lapilli <pleasedontspam(a)isp.com> said: Hello, I see that Emu48 has been ported to many platforms. I was wondering how much ram does it need to run, the idea is to perhaps port a special version that could be stored in Flash memory on a 50G calc (perhaps repla... 6 May 2008 22:26
10 years ago: Unofficial Emu48 Update It's now 10 years ago, on April 21th, 1998 I published my first update for Sebastien Carlier's Emu48 emulator. The publishing address http://privat.swol.de/ChristophGiesselink/ still exists but it's now only a forwarder to my actual homepage at http://hp.giesselink.com. At that time I called the updates "Unofficial... 6 May 2008 21:23
A bug and a related mini-challenge re LSQ [analogy with LR] My stab at a hasty "review of thread" (at least the part following acknowledgment of LSQ bug), from my own end of the telescope: LSQ generalizes the idea of solving an equation set, by seeking to minimize the Euclidean norm of 'A*X-B', which is always possible, rather than the goal to satisfy 'A*X=B', ... 6 May 2008 21:23
A bug and a related mini-challenge re LSQ On Sat, 03 May 2008 20:06:01 -0500, Rodger Rosenbaum... (who meanwhile wrote another, while I was still writing this :) Hi -- isn't this banter fun? I think it may actually soon converge to some agreement or conclusion (or fatigue on the part of the participants :) and meanwhile may have left some useful bits... 6 May 2008 20:27
49G/49G+/50G BUG - SIGMA Funtion Hi all, I found other 49G/49G+/50G bug: I have the array: MTR = [[ 1 2 3 ] [ 4 5 6 ] [ 7 8 9 ]] I need to solve: 'SIGMA(m=1,3,SIGMA(n=m,3,MTR(m,n)))' 49G/49G+/50G Retunrs: 'MTR(m,1.)+(MTR(m,2.)+MTR(m,3.))+(MTR(m, 2.)+MTR(m,3.))+MTR(m,3.)' the 48G/GX returns: 26 = (1+2+3)+(5+6)+(9) Try it! N... 24 Apr 2008 13:15
[Re] A bug and a related mini-challenge re LSQ Previously... Solving 'A*X=B' via LSQ for [[ 1 1 0 0 0 -1 ] [ 1 0 -1 0 1 0 ] [ 0 1 1 1 0 0 ] [ 0 0 0 1 1 1 ]] 'A' STO [[ 4 ] [ 8 ] [ 12 ] [ 16 ]] 'B' STO Although this case is labeled "under-determined," the rows of [A] are linearly dependent (row4 = row2 + row3 - row1)... 24 Apr 2008 03:28 |