Unscrew all 10 miniature screws. Disassemble the casing and press the side of battery to remove it cage on the PCB board. Replace new GP189 Coin Battery, reassemble the casing and tighten screws. Buy GP 189 from Amazon.

Download Options: Download Emulator (39MB) 2020.01.16 * latest version Download Accompanying Connectivity Kit (25MB) 2020.01.16

An emulator is a software that duplicates the functions of the calculator (the guest) in a computer system (the host), so that the emulated behavior closely resembles the behavior of the real physical calculator. Using Wine PC Compatibility Layer to run PC Emulator on Mac0S HP Prime Emulator (Naive) for MacOS

This release of the Prime Calculator firmware and associated PC software delivers significant new features and fixes outstanding issues. Important Note: Please back up your calculator before the update. Any existing data on the device will be wiped (deleted) during the update process. Summary of Changes: Use the touch screen to move and stretch your function plots and see how your changes affect the equation Enhanced touch screen curve sketching with cubic support Add a picture to the background of any graph.

Date Released: 2015/06/17 FirmwareVersion: 2015 06 17 (8151) Description: This maintenance release of the Prime Calculator firmware and associated PC software delivers fixes to outstanding issues. This document is not a complete list of all changes, but highlights specific items. All users of the HP Prime calculator are encouraged to upgrade for the best possible experience. New Functionality: Theme variable to allow programmatic access to current system theme and color settings Added PredX support for logistic fit in statistics 2 var Resolved issues and changes excluding CAS:

How do I use HP 10bII+ to calculate common logarithms (is the logarithm with base 10)? just calculate the natural log of your number, and then divide it by the natural log of the new base. Log(X) = log10(X) = LN(X) / LN(10) For example to get Log(3) which is 0.47712125472 Press 3 [Orange Shift] [LN], the screen display 1.0986 Press [÷] 10 [Orange Shift] [LN], the screen display 2.3026

Free Fonts Here are some essential calculator fonts for documentation purposes. This archive was submitted by bart of barend.plus.com. Download from Cached Archive (filesize 600KB) List of fonts available: 39gplus.ttf FONTMENU.TTF HP48MENU.TTF 49COLG.TTF FONTMINI.TTF HP9G.TTF 49G.TTF FONTSUP.TTF HP9S-1.TTF ASTRB___.TTF HP30S.ttf HPCALC__.TTF ASTRO___.TTF HP48AKEY.TTF HPcalc_09_05b.TTF Bondi12CPlus.TTF HP48GOS0.TTF Hp33s.TTF FONT6.TTF HP48GOS1.TTF Patched HP10BII.ttf FONT7.TTF HP48GOS3.TTF SCREEN48.TTF FONT8.TTF HP48KEYS.TTF

HP Part number: FOK65AA Technical specifications: 2.4GHz wireless (Nordic chipset) Uses a highly integrated, ultra low power (ULP) 2Mbps RF transceiver IC for the 2.4GHz ISM (Industrial, Scientific and Medical) band. The chipset integrates a complete 2.4GHz RF transceiver, RF synthesizer, and baseband logic including the Enhanced ShockBurst hardware protocol accelerator supporting a high-speed SPI interface for the software application (HP Connectivity Kit). System requirements: Available USB port on a PC running Microsoft Windows 7, 8 or 8.