Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °
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No programmer but I know HTML and dabble in sql server and I catch on quick to things especially topics that intrigue me. I am the type of person that will use the excel functions for efficiency but I want to be able to know how to do it just for the knowledge. Hell I was playing around taking quizzes last night on your site just for the fun on it.
Then lets put it all together:
Are you a programmer because they are much quicker than math types when it comes to understanding math!
yes understand it all
One piece at a time:
which has a formula for it
Okay to here?
Let's go back to that magical formula:
and do one. Let's say you wanted just 2 heads out of 4 tosses. We know that n is the number of heads.
Do you follow the plugging in of 2 into the formula?
Mathematicians are real big on two things, jargon and notation. They figure that way no one knows what they are talking about and that is the way they like it.
start right there
Do you know what a factorial is? For instance is 4! familiar to you or should I start right there?
yes I understand so far
That little dot in front means multiplication.
Is an nCr or a binomial coefficient. The definition depends on a factorial, do you follow so far?
I dont know what cdot is and how to do the 4 over the n. Its been about 20 years since I learned this stuff and my memory just isn't what it used to be.
You can use that formula for hand calculation. What part of it do you not understand?