Advice to buy an HP
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04-21-2015, 02:42 PM
Post: #47
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RE: Advice to buy an HP
Hi, I've just received the 50g and I'm really pleased. I'm trying to solve the formula I have upload but I get the "invalid user function" error. I wrote the equation on the equation writer and tried to EVAL it but nothing. Any clues?.
Thank you. |
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