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rubenvb
  • Member for 13 years, 8 months
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20 votes
7 answers
5k views

Is addition more fundamental than subtraction?

6 votes
1 answer
2k views

Solving a geometric algebra equation

6 votes
0 answers
2k views

Choosing the branch of a logarithm

6 votes
1 answer
783 views

Analyticity of a function depending on $z$ and $\bar{z}$

4 votes
5 answers
3k views

What's the meaning of the unit bivector i?

3 votes
3 answers
17k views

Mathematica's "Solve" and filtering out the one real (non-complex) solution

2 votes
1 answer
4k views

How is the multiplicity of a pole defined when square roots are involved?

1 vote
1 answer
361 views

Mathematica VectorPlot with Piecewise arguments

0 votes
1 answer
77 views

A function of two functions that loses dependence on an argument

0 votes
2 answers
236 views

Create list of {x,f(x)} pairs

0 votes
2 answers
71 views

Is there such a thing as complex rational numbers and does it have the same properties as the usual complex numbers as extension of the real numbers?