Memento of useful tips and tricks for HP50g
Contents
1. 11 L shift Function keys stores object RPN So if you go from the PRG menu into the MTH menu this will jump back to the PRG menu Wireframe for plotting curved surfaces in space showing wireframe grids Y Slice for plotting a slicing view of a function f z y 13 L shift HOLD UPDIR goes back to home no matter how far down in a directory you are I Luca MerciadriGstudent ulg ac be 4 Common Problems If you encounter problems with this calculator many solutions could help you Here they are 1 To restart the calculator if there is a bug press j and wait a few seconds 2 A more powerful solution is to press ON F1 and F6 Then you can press F1 yes if you want the calculator to try to recover the data in NHOME if you simply want it to erase HOME directory and the port 0 press no 3 If you think a library has a problem you can press ON F3 and 4 If there is a real problem remove the batteries Replace them immediately if you do not want to lose any information 5 Communication with the Computer 5 1 On the Calculator To allow the calculator to receive data you have to press Right Shift the red shift button and the right arrow 5 2 Using Microsoft Windows If you are using Microsoft Windows you can use the software called HP48g 49g 50g series Calculator Connectivity Kit edited by HP 5 3 Using Linux Evidently if you are using Lin2. batteries Anyway you can use rechargeable batteries Furthermore you can power the calculator using the USB cable Just plug it into the calculator and connect the USB cable to your computer It should work To test this you can press ON and simultaneously Then press It should display something like USB POWER WORK As you have noticed the system menu has many functions which are intuitive 7 Installing Libraries Libraries must be distingished from simple programs They may be necessary for some of your programs They always end with a lib The simplest way to install a library is to put it on a storage folder in your calculator using tools described above They then need to be copied or moved as you want using the filer in the FLASH so in port 2 FLASH After this just make a soft reset pressing simultaneously and 3 Your librairies are now available through the LIB menu 8 Installing Programs When downloading a program be sure that you do not need a special library to make it work If you have installed the library librairies it depends on put your program in the APPS directory in HOME in the calculator s storage You can access it using VAR menu if you are in Algebraic mode If you use RPN it will only show the stack s state after the call to your program A general way to launch your program is to go through your files folder and press when the cursor is on the program you want to launch 9 Modifying K
3. EYTIME The KEYTIME variable represents the the number of ticks assuming 1 second is equivalent to 8192 ticks that a repeated press of the same key will be ignored for with a range of 0 through 4096 Thus if you think the calculator is too slow with your input just modify KEYTIME var following e g in RPN mode this procedure 1 Type your new KEYTIME value 2 Press ENTER 3 Type KEYTIME 4 Press STO You can also type directly lt lt 500 gt KEYTIME gt gt To make this value remaining after a reset you can create a variable containing this called STARTUP in the HOME directory STARTUP is run each time the calculator is reset To check the value of KEYTIME you can simply press Scroll down to see KEYTIME and press OK when it is selected 10 Strange Facts 10 1 Rational Proper Fractions Consider the rational fraction j z a 4 1 It is proper and one can easily notice that 1 1 1 zx rc 1 x 41 It is easy to find but HP50g cannot find this using PARTFRAC function 10 2 Antiderivatives Consider the function We shall want to compute T l dz et 1 However the HP50g cannot do this Let s use IBP this function being continuous on 0 co We then have f Df e 1 e Dg 1 g x Thus dr zc c e dz ez 1 e 1 et 1 wee 1 Tog Let f In u 1 Df ou The antiderivative is thus Dg di gc i It yields t
4. Memento of Useful Tips and Tricks for HP50g Merciadri Luca Abstract This document presents a short list of math important commands on HP50g There is not much documentation about HP50g on Internet so it completes the user s manual see HP06 1 Commands 10 11 12 13 define f a b dr y f a b Er y defines f function of more than one vari able deriv P z y z v y z V P z desolve g f x f x solves any dif ferential equation if possible if f a is the unknown gives egvl M gives the eigenvalues of M egv M gives the eigenvectors and eigenvalues of M f x y gives f x y factormod P x gives the factoriza tion of a given P x polynomial idn n gives In image M gives im M transform ilap inverse Laplace L F s f invmod z performs the inverse of x modulo the current modulus isol f t 0 t finds solutions of f t by isolating t ker M gives ker M 2 Plotting Functions 1 10 11 12 13 14 15 16 Bar for plotting simple bar charts Conic for plotting conic equations circles ellipses hyperbolas parabolas 14 15 16 17 18 19 20 21 22 23 24 lagrange zi 2 3 di fh y1 Y2 Y3 JD gives a Lagrange polynomial interpola tion lap Laplace transform L f t F s lapl P z y z x y 2 V P z V e V P z Idec g x f
5. ges between exact and approximate mode Diff Eq for plotting the numerical solution of a linear differential equation Fast3D for plotting curved surfaces in space 2 Down opens appropriate editor for item on level one of the stack or history 3 Right swaps items on level one RPN 4 Up accesses stack or history Similar to HIST button Function for equations of the form y f x in plane Cartesian coordinates Gridmap for plotting real and imaginary part traces of a complex function Histogram for plotting frequency histograms statistical applications 6 Parametric for plotting equations of the form x c t y y t in the plane T Polar for equations of the from r f 0 in polar coordinates in the plane 5 Left starts picture view to look at last graph or picture R shift Down displays full names of items in soft menu R shift Right X modem server mode 8 R shift HOLD Right Kermit server mode Pr Surface for parametric surfaces given by c x u v y y u v z z u v Ps Contour for plotting contour plots of surfaces 9 L shift HOLD TOOL toggles real complex mode 10 R shift Function keys recalls object Scatter for plotting scatter plots of discrete data sets statistical applications Slopefield for plotting traces of the slopes of a function f x y 0 Truth for plotting inequalities in the plane 12 L shift HOLD PREV jumps to the last menu you were in
6. hat ln u 1 du ln u 1 1 du u u u u 1 ln u4 1 1 1 du u u uti sy ED In u In w 1 u dr c f BE a e 1 e 1 u DUPA In u In u 1 ev 1 E ln e 1 1 d x EIN P In e 1 ln e 14 1 mem Be In e 1 In e eTcl e 7 m ex References cal09a Business support forums slow type with HP 50g calculator 2009 http forumsii itrc hp com service forums bizsupport questionanswer do admit 109447626 1244141423458 28353475kthreadId 1162038 cal09b Where is Hp 50g s KEYTIME command 2009 http www physicsforums com showthread php t 157969 dar09 Transfert sous Linux 2009 http www hp network com docs transfert_linux linux php geo09 Hewlett Packard Calculator Tips amp Tricks 2009 http www geocalc com au tips HP06 HP HP50g Graphing Calculator User s Guide 2006 http smendes com hp50g pdf
7. n gives the general solution of a linear ODE with constant coeff lim f x a 0 lim a f x linsolve P zx y P2 x y v y solves Pi z y and Pa x y according to x and y gives lu M gives a Crout LU decomposition of M using partial pivoting mad M gives in RPN mode det M M matrix coefficients of p x so x I A p z 2 M x I and the char acteristic polyn of M modsto xz changes the current modu lus to x partfrac f r gives the decomposi tion of the rational f x fraction into partial fractions pcar M gives the characteristics poly nomial of M assuming M is a square matrix 3 Built in Shortcuts 2T 28 29 30 31 32 33 34 35 36 signtab f xr gives infor on the sign of f x through its domain simult allows gt 1 functions to be plotted simultaneously solve P u c u isolates variable finds solution s solvex P x c finds solution s subst f x g x verifies if g is a solu tion of the O D E f x subst x a gives f a tabval f x a b gives range of f x between a and b tabvar f x f x taylr x 2 a gives a Taylor series ex pansion of f x for the order a complete analysis of tran M gives the transposate of the M matrix trn M gives the transconjugate ad joint of the M matrix vandermonde n o p generates V 1 R shift HOLD Enter chan
8. ux it is a little bit more fair haired as habitually If you use Ubuntu or another Debian like distro you can simply type apt get install ckermit in a shell with super user s rights For other distro s you can use the following bash script which will install kermit or make it yourself bin bash if UID 0 then echo you need to be root to install ckermit exit fi if x usr bin wget then echo ckermit download else echo wget is not installed on your computer exit fi wget ftp kermit columbia edu kermit archives cku201 tar gz mkdir usr local src kermit mv cku201 tar gz usr local src kermit cd usr local src kermit tar xvfz cku201 tar gz make linux make install echo ckermit has been installed on your computer With a not Debian like distro you continue using chmod x ckermit install sh amp amp ckermit install sh Whatever the distro you launch kermit using kermit 1 dev ttySO where S0 is replaced by S x 1 x being the COM port where your calculator is located on your computer and without braces In kermit begin by typing the following text set carrier watch off robust You can now send and receive files with your calculator To send a file type send followed by the name of the file To be in server mode just type server kermit will wait a file to be sent by the calculator if any 6 System Menu and Power As you know this calculator works on
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