This is a little bit exaggerated, isn't it?įor sure the CR2032 has no energy capacity to explode either. Test 6 Copyright: COPr HP 2010 1,752.00 (Size in bytes of the internal calc structure, as per TW info)Īnd theoretically it could be re-flashed as long as one gets the required tools and a goal to do so.Īppendix A of the excellent User's Guide includes a " Warning! There is a danger of explosion if batteries are incorrectly replaced" warning. Test 8 Set I/O Clock: SC-28,500.00 (it allows some adjustment of the clock speed if the serial communications are behaving unreliably, as per TW info) ![]() Test 4 Battery: 2.900 (I need fresh batteries here.) Test 3 Checksum: 244.244 (number before is the calculator number, the other is the number put in the flash to compare against and should match, as per TW info) My specimen was manufactured on 2012 week 12 according to the serial number.Ĭould this be a later firmware revision?) (please note the number 2 after the date, not referred anywhere in the few past messages posted here and elsewhere. Pressing = will run the selected test and at the end of it, press = again will return to the menu. Using + and - to chose the test gives me the following options: Pressing PMT + ON will enter the self test mode. Some people mentioned the existence of an Easter Egg. Really good job from Tim and Cyrille here! ![]() I understand that it was built using the 20B/30B as the base platform. ![]() On top of that, this is probably a almost bug free calculator, as referred elsewhere. For example, the gamma and trigonometric functions are included. This is a blinding fast machine for such a low end entry priced calculator!Īlso, in addition to the intended financial features, it sports statistics and scientific functions too. It should come up with the same error message consistently - if it does not, then it is unlikely to be malfunctioning.I must be one of the last persons here to get one of these. If your calculator fails the self-test, before concluding it is defective, try running the self-test several times. Self-test: if none of the above solves the problem, you can test the calculator using its self-test feature.However, your calculator won’t start to give wrong answers as the batteries run out! See your HP 10B/10BII owner’s manual for instructions on how to replace the batteries. Batteries: if the batteries are dying, your calculator screen will dim and eventually a little battery symbol will show in the bottom right corner.You should put your calculator in “floating decimal” mode which shows the most significant decimals possible – press shift DISP. You don’t want this setting because some calculations require a lot more accuracy and in others you need to be able to decide rounding for yourself. If you have the calculator set to show, say, 2 decimal places, it will automatically round off answers to the nearest cent. Decimal Places: the HP 10B/10BII calculator will display 0 - 10 decimal places.You should set your calculator to “end-of-period” mode by pressing shift (the yellow key) BEG/END. Mortgage payments are made in arrears or “not in advance” (i.e., you pay interest at the end of each month), compared to lease payments which are made in advance (i.e., you pay on the 1st of each month for the month ahead). BEGIN appears on your calculator screen: if your calculator shows BEGIN on the bottom of the screen, you will get the wrong answers in most financial calculations. ![]() RCL can be used to figure out where a data entry problem occurred. For example, to check what is in the PV key, you can press RCL PV If you get a number that doesn’t make sense or is wrong, you can simply change this one number rather than starting again from the beginning. You can always check what is stored in any particular key by pressing RCL and then the key. Data Entry Error: a common mistake is in entering one number incorrectly, or in forgetting a step such as entering 0 in FV or PMT for certain calculations (which means that whatever number is in the key from the previous calculation will remain in the key’s memory).Why your calculator may be giving you the wrong answers?
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