PREGUNTAS COMUNES

Todas la preguntas, respuestas y links son ofrecidos gracias a Colin´s Croft 

00. Do you have any interesting graphs that you have seen? 01. Why have some of the keys on my calculator stopped working? 02. My HP38G keeps telling me that I’m low on memory. 03. What is the difference between NOTE and NOTEPAD? 04. Why are the default axes so strange for the PLOT view? 05. What does 'Faster' mean in the PLOT SETUP view? 06. What does 'Build Your Own' mean in the NUM SETUP view? 07. I have set 'Fixed 2' in the MODES view of my HP38G but it only works in the HOME view. Why? 08. How do I get these weird characters that appear in various places? 09. My downloaded aplet used to work but now gives strange error messages.   10. How do I use calculated values from FCN or STATS in the HOME view? 11. How can I save my notes onto a computer? 12. How can I save a copy of an aplet? 13. When I find a solution in Solve, how do I access it in the HOME view? 14. How can I get exact value solutions such as fractions of pi? 15. How does the Fraction mode work? 16. My batteries sometimes seem to run out very quickly. 17. Why does the sqr root of -9 give an answer instead of an error as my scientific calculator does? 18. Why the jaggy lines in graphing (1+1/X)X using extreme PLOT ranges? 19. How can I completely clear the memory of the calculator?   20. How can I change the date and time on my calculator? 21. Is the HP48 a better version of the HP38/39G? 22. Is there a bug in the Sequence aplet? 23. Why does PREDX give incorrect answers? 24. The box containing my Connectivity Kit says "Windows 3.1 only" 25. Can I accidentally erase the aplets that come with the calculator? 26. Is there a way to upgrade the memory on my HP38G? See also #42. 27. How can I print using my infra-red printer? 28. The COM port needed to use the Connectivity software is being used by my mouse. 29. Why is the value of the covariance on my HP38G "incorrect"?   30. Can I make my own cable to use with the Connectivity software? 31. Can you use Reverse Polish Notation (RPN) on the HP38/39G? 32. How can you graph inequalities such as y < 2x+1 on the HP38/39G? 33. Why does my HP38/39G freeze when evaluating integrals with an ABS in them? 34. Is it possible to change the volume of the beep or to switch it off? 35. What is the origin of the strange number (6.0030000004) on the cover of my HP38G? 36. I've stored Notes on my PC and now I can't read them back to my calculator. See also #54. 37. How do you convert complex numbers to r cis theta form? 38. What are the ON+Key combinations that are available? 39. Why do programs on the HP38/39G take up more room than those on a Casio?   40. How long does it take to write an aplet, and does it get less with time? 41. Why do the aplets on your webpage not have a .SV program with them, whereas the HP ones do? 42. Is there any way to free up more than 23Kb on the HP38G? 43. Are there any game for the HP38/39G? 44. I'm having problems downloading aplets with the cable. 45. How can I find out the available memory on the HP38G? 46. What are all of the beeps when translated into music? 47. How can I graph piecewise defined functions? 48. Why does entering a function of X(X+2) give an error message? 49. Can I get "lower tail" instead of "upper tail" for the Normal distribution using UTPN?   50. Is there a way to predict how much memory a program will take up on the HP38G? 51. Is it possible to convert to other number bases such as binary and hexadecimal? 52. How can I transfer the fit equation from the 2VAR Statistics PLOT view to the Function aplet? 53. How can I transfer data from columns or lists on the HP38/39G to a a PC and use it in Excel? 54. How can I edit HP39G Notes using the ADK?  Updated!! 55. My calculator has locked up and I have important data on it that I don't want to lose. 56. What is 'RelErr'? 57. How can I get 'nice' values in the table when I use the split view of the Plot-Table view? 58. How can I easily display the roots of a polynomial? 59. What are "Easter Eggs" and do the HP38G or HP39G have any?   60. What are the differences between the HP38G and the HP39G? 61. What are the differences between the HP39G and the HP40G?  62. What is the 'Library' entry in the MEMORY display of my HP39G? 63. What are these strange new symbols such as on the keyboard of my HP39G? 64. What is the DISPXY command listed in the CMDS menu of the HP39G? 65. Why is my circle incomplete?         66. How can I create an empty list using a command in a program? 67. How much can the HP38G and HP39G communicate via their infra-red links? What can I transfer? 68. Why it is that when I reset my HP39 it tells me that I have 234Kb insted of 256? 69. How do I produce games and really fast aplets on the 38/39/40G?    70. Is there is a tool to compile programs on a PC?  71. How can I solve linear systems of equations like the one below using the CAS on the HP40G? 72. Can I use my PC's infra-red port to communicate with my calculator without a cable? 73. How do I transfer the results from a CAS calculation on an HP40G to the Function aplet? 74. Can you use HP38G aplets on an HP39G (or vice versa)? 75.  76.  77.  78.