# paganinio

Senior Members

74

• #### Last visited

• Birthday 06/26/1988

## Profile Information

• Location
Backstreet, Smallville
• College Major/Degree
High School Senior 2
• Favorite Area of Science
Math
• Occupation
Student

• Meson

10

1. ## Frequency of musical notes

Is there anyway to get the frequency of notes (from a midi or wav)? Through matlab or other softwares perhaps?
2. ## Colors other than blue

Am I the only one that got tired of blue? I couldn't find the option to change it.
3. ## Extra Clicks From Mouse

My mouse had the same problem, it's most likely a problem from the mouse hardware. In my country (China), this problem is so common that someone actually wrote a software to fix it. But I assume you don't read Chinese, and wouldn't know how to use that software. There's most likely a program in English that does the same thing. Try searching for "double click fix". The best recommendation is to have your mouse repaired, or get a new one.
4. ## olenka    paganinio

Hi, Could you help me with these problems please??

1. Use Venn diagrams or membership table to demonstrates that:

A U (B ∩ C)= (A U B) ∩ (A U C) is a true equation for any sets A, B, and C. If you use Venn diagrams , show the three circles overlapping and include a legend pointing out which set is represented by witch shaded regions.

2. Find the best conclusion for this Lewis Carroll problem . The "best" conclusion is one which uses all of the given information.

A. No one who is going to a party ever fails to brush his hair.

B. No one looks fascinating , if he is untidy.

C. Opium -eaters have no self-command.

D.Everyone who has brushed his hair looks fascinating.

E.No one wears white kid gloves unless he is going to a party.

F. A person is always untidy if he/she has no self -command.

Assign letters to the statements , write the premises using logic symbols , write a valid argument which leads to the best conclusion , then write the conclusion in words.

3. Prove this statement : For all X ε { 2,4,6,8,12,10}, 3x +12 is an even number.

Here I am, the first (and obviously the best) one to help, no edits (which means I won't edit it if there is an error, which gladly there isn't any) this guy already did 2a for ya, he's most likely to be correct, but since I'm not the one that solved it I can't make promises. I'll solve the rest. Yeah that's right, all of them. Why? Cos that's what I do, I solve problems (and brag about doing so). But don't be so happy just yet, because I'm also a mathematical minimalist (besides being a conversationalist, apparently). My solutions are neat and I won't explain them in words. Try to understand them yourself. The capital letter V denotes disjunction. start of solution 2b) ~(iVs) <=> ~iʌ~s 2c) ~(p⊙r) <=> ~[(pʌr)V(~pʌ~r)] <=> ~(pʌr) ʌ ~(~pʌ~r) 1) p: I am ugly. This is a false statement. q: My girlfriend is pretty. This is a true statement. [(p→q)ʌq]→p <=> [(0→1)ʌ1]→0 <=> [1ʌ1]→0 <=> 0 end of solution If you respect me, you should only go to Mathworld for more info. Hopefully your homework isn't due yet, is it? Feel free to notify me when you have any future discrete problems. I'm only being such a nice guy to impress my on-and-off girlfriend. She is always impressed when I solve something that has exclusive disjunction in it (this thread came close). I wonder why. I hope I'm not acting too cheesy, am I? This is actually the only unsolved problem on the Internet that I can solve.
6. ## The Most Important Equation Ever.

never seen this equation, does look important though, with all the Natural logarithms and big T's
7. ## Is Luck Real?

Strictly saying, everything is beyond a person's control. Let's say I expect to see the letter "R" on screen when I press the R key on my keyboard, but there is always a very small possibility that it won't show up. (Maybe the keyboard just happens to break at that moment.) Therefore, everything is a coincidence. But the word "coincidence" usually refers to something that is not likely to happen. Even in this case, coincidences happen about four times everyday in a person's life. edit: and in Jack Bauer's life, coincidences happen about 40 times everyday.
8. ## Can pi be reduced to a rational number?

Wrong, all the way from the first sentence to the last All this signals your lack of understanding basic mathematics concepts Basic geometry would tell you the area of a square and a circle. Just because a circle involves more calculation doesn't mean it's more complex or mysterious. I don't know how to explain but your way of thinking is reversed somehow. A point in mathematics doesn't occupy anything. A point is 1-dimension, a plane is 2-dimension. A plane doesn't occupy anything either. And irrational numbers are not as special as you think at all. They are as plain as rational numbers. If I were you I would worry about complex and imaginary numbers instead. Those are really mysterious to me.
9. ## What is this frog?

ok time for some humor Crazy Frog.
10. ## Does the Incredible Machine computer game accurately simulates classical physics?

Physics hasn't been a part of my life since I graduated from high school. Now I got this great game "The Incredible Machine: Even More Contraptions", I'm starting to remember it all. This game doesn't seem to require any calculations, but the player has got to understand how the things work, such as pulley, teeter-totter etc.. The game interface is a little similar to the Electronic Circuit Design and Simulation Software that I used. I'm just hoping someone professional has played this game and tells me what you think. Is it an accurate "simulator" for real life physics? P.S. There is a "glittery" ball that bounces forever. I don't think that's possible in real life. But other than that, everything in the game is believeable to me. Game is available for Mac too.
11. ## What is college math like?

What is college math like? I have a few questions. 1, Why is my favorite high school olympiad math contents not here? For example, where's number theory? Where's solid geometry? Where's trigonometry? Where's.....? Do they just disappear in college? 2, this is a much more important question. I FALL FOR HIGH SCHOOL MATH OLYMPIAD PROBLEMS. I enjoy the beauty of problem solving there. Am I likely to fall for college math too? You might say "Sure!" But I've read some college math books--they really look quite different. I suppose that every problem solving fan has a BRAIN LIMIT, and she will only feel comfortable when she's solving problems within that limit. No matter how bad she likes math in high school, she's not more likely than others to enjoy college math. How do you think? Should my math career end before college?

a marker pen
13. ## Number Sequence

oh my gosh it's not only 32, EVERY NUMBER is tricky here. Because...who would come up with things like that!?
14. ## Basic chemistry - basic physics

go to a bookstore and many books will do

×