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Dan Fox
Madrid, Spain
https://blogs.upm.es/danfox/
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Top Questions
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Top Answers
170
Determinant of a non-square matrix
math.stackexchange.com
121
Dismissed from PhD due to disability-related misconduct: how to answer question about dismissal?
academia.stackexchange.com
53
Should I simply ignore it if authors assume that I'm male in their response to my review of their article?
academia.stackexchange.com
47
Have you ever seen this bizarre commutative algebra?
mathoverflow.net
44
Explaining the order of negative integers
matheducators.stackexchange.com
41
Is there a fair way to increase the grade of students who did not do well in exams?
matheducators.stackexchange.com
33
How important is knowledge of trig identities for use in Calculus
matheducators.stackexchange.com
30
When is a closed differential form harmonic relative to some metric?
mathoverflow.net
26
What can (and should) an educator do about ambiguous terms like "triangle", "square", etc?
matheducators.stackexchange.com
26
How to publish superseding results without creating enemies
academia.stackexchange.com
24
Which mathematical ideas have done most to change history?
mathoverflow.net
22
Why is there no symplectic version of spectral geometry?
mathoverflow.net
20
Is Linear Algebra Done Right too much for a beginner?
matheducators.stackexchange.com
18
Are translation journals still a thing?
academia.stackexchange.com
17
Why are the contents of contest maths so different from contents of degree-level maths?
matheducators.stackexchange.com
15
Discovered that my research was not so original after it was complete. Is there a policy I should follow here?
academia.stackexchange.com
15
Which great mathematicians were also historians of mathematics?
mathoverflow.net
14
Should I describe the function $x \mapsto f(x_0) + f'(x_0)(x - x_0)$ as "linear" in a freshman calculus class?
matheducators.stackexchange.com
13
Is it appropriate to ask a professor how my grade was calculated?
academia.stackexchange.com
13
Why we don't normally teach chord, versine, coversine, haversine, exsecant, excosecant any more?
matheducators.stackexchange.com
13
Nonequivalent definitions in Mathematics
mathoverflow.net
12
ZbMATH and conflict of interest
academia.stackexchange.com
12
Is There Such Thing as Learning Disability in Math?
matheducators.stackexchange.com
12
Real orthogonal and sign
mathoverflow.net
11
How should I introduce the Chain Rule
matheducators.stackexchange.com
11
"Famous" 2d Riemannian manifolds with non-constant curvature
mathoverflow.net
11
Is there a place to buy physical models to demonstrate the Calculus shell, disk, and washer methods?
matheducators.stackexchange.com
11
Why don't textbooks foreground marginally generalized theorems?
matheducators.stackexchange.com
10
Teaching asymptotic notations at the beginning of calculus
matheducators.stackexchange.com
10
Should theorems be proved to students who are not majoring in mathematics?
matheducators.stackexchange.com
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