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- How do you calculate the modulo of a high-raised number?
I need some help with this problem: $$439^{233} \\mod 713$$ I can't calculate $439^{223}$ since it's a very big number, there must be a way to do this Thanks
- Maximization with xor operator - Mathematics Stack Exchange
With given N numbers only one of those numbers doesn't have pair, which one is it? After hours of surfing the net i found that XOR operator is good for that, because X xor X=0 X xor 0=X and A xor
- How to add and subtract values from an average?
I know that's an old thread but I had the same problem I want to add a value to an existing average without having to calculate the total sum again to add a value to an exisitng average we only must know for how many values the average was calculated for: $$ average_ {new} = average_ {old} + \frac { value_ {new} - average_ {old}} {size_ {new}} $$
- How to simplify $a^n - b^n$? - Mathematics Stack Exchange
You'll need to complete a few actions and gain 15 reputation points before being able to upvote Upvoting indicates when questions and answers are useful What's reputation and how do I get it? Instead, you can save this post to reference later
- What is the minimum and maximum number of eigenvectors?
I am given the eigenvalues of a square, 8x8, matrix They are all non-zero I have determined that the matrix is diagonalizable and has an inverse In one part of the problem, I am asked to find the
- Perimeter and area of a regular n-gon. - Mathematics Stack Exchange
A friend of mine asked me how to derive the area and perimeter of a regular $n$-gon with a radius $r$ for a design project he is working on I came up with this, but
- algebraic geometry - Why is a smooth connected scheme irreducible . . .
More generally, locally with finitely many irreducible components is enough (each point has a neighborhood with finitely many irreducible components) The full statement is then "every regular, connected scheme with locally finitely many irreducible components is irreducible"; which in turn is a particular case of "every connected topological space which has disjoint irreducible components and
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