Understand simple math in HP 12 c

Hi guys,.

I really wish that someone can help me here before I have send HP customer support. I just received a brand new calc HP12c as a gift. This is my first time to use a financial calculator. I learned yesterday to calculate the time value of money which was pretty cool because it makes really easy calculation UNTIL I'm curious regarding how to do simple math - additions/deductions as there is not (=) equal sign. So I youtubed, followed by what is said on the vid, but somehow my calculator gives me ALWAYS the wrong answer. Say I do 5 + 3, the answer is 8, right? What I did before putting any character, I pressed CLX first, then supported on the f END just to make sure I erased everything and then pressed 5 3 ENTER ENTER +, guess what? Answer is always 10. WHY? Hope you can help me guys because he's too good of a calc to have.

Thank you very much

wrinxtin

You are right! I have coz as soon as I tried 5 INPUT 3 +, it gives me 8 this time. But now my question how can I just reset back to normal not RPN postfix? I know that I really have TO read the manual, but I have 3 exams this week so just want to learn more quickly... so I'll have to all the time next week he read Word by Word.

Tags: HP Tablets

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