安裝中文字典英文字典辭典工具!
安裝中文字典英文字典辭典工具!
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- Mathematics Stack Exchange
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- Difference between ≈, ≃, and ≅ - Mathematics Stack Exchange
In my work "=" is the identity of a number so it states an equivalence 1=1, 2x=10 ie x =5 The approximation sign "≈" I use for decimal approximations with tilde "~" being a rougher approximation
- factorial - Why does 0! = 1? - Mathematics Stack Exchange
$\begingroup$ The theorem that $\binom{n}{k} = \frac{n!}{k!(n-k)!}$ already assumes $0!$ is defined to be $1$ $ Otherwise this would be restricted to $0 <k
- statistics - I am getting asterisks in minitab for the p--value when i . . .
I am trying to do a Two-Way ANOVA I did what i think I need to do to have the p-value show up on the screen (after i click the button that starts the calculation) but, all i see next to the P-valu
- Good book for self study of a First Course in Real Analysis
For self-study, I'm a big fan of Strichartz's book "The way of analysis" It's much less austere than most books, though some people think that it is a bit too discursive
- Pole-zero cancelation method for PI controller design
I think it is ill-advised in practice to do pole-zero cancellation Unstable pole-zero cancellation is just plain bad (the closed loop will be unstable) but stable pole-zero cancellation is also not great for practical reasons
- Vector cross product identity for $(a\\times b)\\cdot(c \\times d)$
Stack Exchange Network Stack Exchange network consists of 183 Q A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers
- Why have we chosen our number system to be decimal (base 10)?
I think the answer here might be, that the guys who thought base 10 was a good idea had the largest sticks If one trusts the wikipedia, the Babylonians had a base 60 system, which can still be felt today with this "60 minutes in an hour" nonsense, and a (related) base 12 system was widely in use too
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