Mathematics

To saturate the inequality, we need something wigglier. The heavyweight champions for polynomial wiggliness are the Chebyshev polynomials , which are motivated and described at length in this previous post.

cross-posted from: https://discuss.tchncs.de/post/48838525

Statistical Tests to determine whether a bit-stream can be considered "random"

If we were to flip a coin 10 times, we would expect to see roughly 5 heads and 5 tails. Let's assign 00 to heads and 11 to tails. Therefore, we might see a sequence like this...

cross-posted from: https://lemmy.today/post/9963785

Hi,

I've found on Wikipedia the following formula to calculate the BMR estimation

We can read just after the formula:

According to this formula, the woman in the example above has a BMR of 1,204 kilocalories (5,040 kJ) per day.

But when I take their example of a 55-year-old woman weighing 130 pounds (59 kg) and 66 inches (170 cm)

and do ((10*55)+(6,25*170)-(5*55))-161 I get 1,217 and not 1,204

Am I doing something wrong ?

Thanks.

A curious math problem I came up with: given a target, what's the fewest digits an integer must have (in a given base) to contain all integers from 0 to the target, as substrings?

http://wok.oblomov.eu/mathesis/number-substrings/

@mathematics @math@lemmy.ml @math@kbin.social

e.g. for a target of 19 a candidate representative would be 1011213141516171819 in base 10, that has 19 digits. Can it be done in less, or is $\sigma_10(19) = 19$?
Can we find a general rule? Any properties of this function?

#math #maths #numberTheory #combinatorics