+/- function on HP-28S?? « Next Oldest | Next Newest »

 ▼ Orb Junior Member Posts: 4 Threads: 2 Joined: Jan 1970 05-30-2005, 03:40 PM Hi all, I just bought an HP-28S without a users manual and am trying to get by without it until I can find one. I'm having a problem finding the +/- function... example: 2.5E-6 (how do you enter the "-" ??) Anyone know? regards, OrB ▼ John Senior Member Posts: 348 Threads: 74 Joined: Jun 2013 05-30-2005, 03:43 PM Must be a recent HP convert. For ages, negative numbers were entered using the CHS (change sign) key. Welcome to the way of truth. ▼ Paul Marin Member Posts: 85 Threads: 10 Joined: Jan 1970 05-30-2005, 08:41 PM It's nice to see so many converting over from the "Dark side" isn't it? Paul Trent Moseley Senior Member Posts: 406 Threads: 47 Joined: Jul 2005 05-30-2005, 09:11 PM CHS FOREVER! tm ▼ HP fan Junior Member Posts: 1 Threads: 0 Joined: Jan 1970 05-31-2005, 12:42 AM 123456 to remove Orb Junior Member Posts: 4 Threads: 2 Joined: Jan 1970 05-31-2005, 10:33 AM Who would've thought the CHS key could be the one. I love my HP28S and have a hard time putting it down. Girlfriend's getting a little jealous.....might have to hide the calculator somewhere safe lest it be sacrificied. thanks all, OrB

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