HP48

Another 50G (disappointment) story
Hi, I would like to share with the good people of this forum, my very own HP 50G story, which unfortunately is a story of disappointment.Just like many people on this group, I recently bought my very own HP50g calculator (my first HP, if you don't count the HP12 and HP15 emulators that I have on my PocketPC). I ... 3 Oct 2006 18:00

random numbers
not a calculator question directly but i had a thouht out of left field that mite drive someone nuts-- for the digits o thru 9- are they in random order to the right of the decimal point of a non-repeating non-term- inating fraction? Arturo ... 26 Oct 2006 12:36

Statistical programming w 49G+
Hello, I wonder if anyone can help me with following question with the 49G+ I have statistical data in, let's say, four columns. I want to calculate the covariance between all possible combinations of the columns (gives diagonally symmetric 4 x 4 matrix). I have the data in a m x 4 matrix SIGMADAT What I do... 6 Oct 2006 15:34

Bizarre Solution on Root of X + one other question
Greetings - I've been using an HP49g+ for some time now, and have been quite happy with it. However, I have noticed one odd interaction. I am pretty sure that I'm missing a flag settings somewhere, or misconfigured the CAS... but have no idea where to start looking and the manual isn't really helpful for this on... 29 Sep 2006 16:16

HP50G vs HP48/HP49
I see to my joy that HP hasn't dropped making new claculators anyway, and has released the new HP50G. As a (formerly) eager collector, the question becomes wheter to buy or not... As I don't completly trust the colored brchures, I have a few questions: How does HP50G compares to HP48S/G, HP49 and HP49+ ? Whic... 25 Sep 2006 11:59

HP49+: How to upgrade ROM and get EQ-Lib?
I bought a HP49+ a while back and was somewhat dissabpointed because it lacked the Equation-Library I'd gotten used to while using HP48GX. I understand it's possible to upgrade the ROM, but how do I do that?!? Can someone give me a step-by-step instruction -- including where to (and how) to aquire the new ROM-image... 23 Sep 2006 09:11

which SD card should i use
I never used such cards in my life , i see there are micro ( or mini ) versions, and "normal" versions. which one fits in the hp49g+ ? about the different sizes, i think 256 is good right? I also read about FAT32, FA16, will i have to configure that? any opnion on the sd reader i should buy? thanks, sor for th... 24 Sep 2006 01:18

HP48G "ON" button weirdness
Has anyone run into this... the ON button doesn't work except for the special keypress sequences like ON-C or ON-A-F? At first I thought the button had just failed when I had trouble turning the HP on (will turn on maybe one out of 100 tries) or off but then discovered that ON-C works everytime. I've used t... 23 Sep 2006 02:24

PROOT mystery - Array & Matrix - does TYPE matter?
John, It's getting more mysterious now: Using AXL to convert the underlying list { ... } of ungrouped cashflows into the vector in question, storing the resulting [[ ... ]] results in a MATRIX (Type 29) not in an ARRAY (Type 3). If you now train your "fast" program on the Type 29 MATRIX, it runs about 1.15 ... 22 Sep 2006 01:17

Even Mathematica wont solve this.
The Limit as a approaches infinity Of Sigma from n=1 to a Of Sigma from x=1 to infinity Of 1 divided by x to the n. ... 21 Sep 2006 15:27