I answer some of your stupid questions.
You know If you were really smart you should have figured all this out yourself.
1-Can this calculator do integration?
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Yes
http://web2.0calc.com/help/integral-calculus/int
2-How many memory registers does it have(my HP has 26)?
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I look this up. Registers for a calculator mean how many parentheses pairs or variables it can have. I don’t know how many but I sure it is more than 26.
3-Is it programable? I can program up to 400 equations in it?
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Of course it is programmable Andre Moussow programs it himself.
4-Does it have any scientific comstants in it? My HP has about 50 constants stored in it.
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I counted them. There are more than 300
5-Why when you enter 250!, it can't cope with it and says "infinity" which is ridiculous. It should say something like "overflow"!. It's less than 10^500 digits long.
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Sometime it say Unendlich. I think it should say “why do you want to know?” Or “Come back tomorrow 200,000 users are requesting solutions”
I hope 250! is less than 10^500 digits long. No calculator or computer can handle numbers that long. Anyway 250! is only 493 digits long.That is 10^(2.385606273598312) way way less than 10^500.
One more thing computers and calculators can’t cope because they are machines. They don’t think or love or hate or give a rat’sass about anything. That is a good thing because it would never do anything for you. Only humans cope. Well some humans do. You do not know much about computers or calculators do you?
6-Its Gamma function is wrong by a mile, especially if you use a relatively large number, such as 20.5!
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I not know this kind of error was measured in miles. Are you the same dumbshit who was complaining about it before?
7-Can it do statistics calculations?
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-- It’s not a statistics calculator It do these Binomial coefficient Permutation
8-Can it do conversions of weights, volume, lengths, temperatures...etc.? -----------
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Yep. A bunch of them. http://web2.0calc.com/help/unit-conversion
9-Can it calculate in any base that you want?
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It do Hex, Dec, and binary
10-Can it solve TVM or financial problems, such as PV, FV, I%, PMT, N....etc.
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It’s not a financial calculator.
11-My HP still has dozens more features that your Web 2.0 doen't have.....etc.
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Well bully bully for you and your HP! I hope you are happy together.
12-To my eye, your web 2.0 calculator is simply "run of the mill online calculator"
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Well your eyes aren’t very good. Maybe you need glasses. A brain would help too.