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omega
  • Member for 11 years, 2 months
  • Last seen more than a week ago
10 votes
3 answers
5k views

How to calculate 3d rotation from 3 points?

7 votes
3 answers
5k views

How to find sequence of digits in pi?

7 votes
1 answer
5k views

Arccos and inequalities

4 votes
2 answers
505 views

How to isolate x in this equation?

4 votes
2 answers
944 views

Is there a cantor pairing function for spirals?

3 votes
1 answer
3k views

How to rotate a 3d vector to be parallel to another 3d vector using quaternions?

3 votes
1 answer
250 views

What is a graph isomorphism?

2 votes
1 answer
110 views

How to get perpendicular vector close to another vector?

2 votes
2 answers
53 views

How to solve this congruence?

2 votes
2 answers
431 views

Are these two expressions equal to each other?

1 vote
0 answers
109 views

How to find the axis of rotation needed to rotate a $ 3d$ vector to another $3d$ vector?

1 vote
2 answers
79 views

Question about logic implications

1 vote
1 answer
2k views

How to implement the adaptive Heun's method?

1 vote
1 answer
295 views

Finding rate of convergence

1 vote
0 answers
285 views

Simplify this expression as much as possible?

1 vote
1 answer
1k views

Proof of $\log_{a}(b_1b_2) = \log_{a}(b_1) + \log_{a}(b_2) $ for discrete logarithm?

1 vote
1 answer
2k views

How to prove integers has a cubic root mod p?

1 vote
1 answer
214 views

How to get value of this binomial coefficient expression?

1 vote
1 answer
763 views

How to use arbitrary rotation matrix to rotate a point in 3d?

1 vote
1 answer
426 views

How to check if an infinite line intersects a rectangular prism in 3d space?

1 vote
1 answer
173 views

Strange behavior with coordinate transformation of square and quadrilateral

1 vote
1 answer
143 views

How to find equation for this sequence of numbers?

1 vote
0 answers
225 views

How to calculate the max value of cantor pairing function given the min and max of the inputs?

1 vote
1 answer
45 views

How to transform multiple 3d points by different distances with a matix calculation?

0 votes
3 answers
1k views

How to calculate weighted center point of 4 points?

0 votes
1 answer
10k views

How to calculate angle given x,y coordinate?

0 votes
0 answers
28 views

What is an algorithm for finding the smallest sub tree of an unweighted directed graph for only a specific set of nodes?

0 votes
0 answers
414 views

Most stable algorithm to solve a system of linear equations?

0 votes
2 answers
76 views

Polynomial interpolation of $n+1$ points but ensure last coefficient is a certain number?

0 votes
1 answer
767 views

How to rotate in quaternions but for 2d version for arbitrary angle?