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John Hass

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195 votes

How to intuitively understand eigenvalue and eigenvector?

linear-algebra statistics eigenvalues-eigenvectors intuition asked Nov 24, 2012 at 4:18
math.stackexchange.com

37 votes

How to floor a date to the first date of that month?

python date pandas numpy asked Feb 16, 2017 at 21:36
stackoverflow.com

28 votes

What is degree of freedom in statistics?

statistics asked Nov 15, 2012 at 7:04
math.stackexchange.com

22 votes

How to understand the spectral decomposition geometrically?

linear-algebra matrices spectral-theory matrix-decomposition asked Nov 29, 2012 at 6:57
math.stackexchange.com

21 votes

What is the difference between continuous derivative and derivative?

calculus derivatives asked Oct 25, 2012 at 13:47
math.stackexchange.com

20 votes

Should a student use the email account provided by the university to communicate with professors?

university email communication asked Nov 15, 2013 at 0:53
academia.stackexchange.com

19 votes

Can an algorithm be part of a proof?

graph-theory proof-writing asked Dec 1, 2013 at 3:33
math.stackexchange.com

18 votes

Error running 'Remote Debugger': Unable to open debugger port (localhost:5005): java.net.ConnectException "Connection refused (Connection refused)"

macos debugging networking intellij-idea asked Nov 15, 2018 at 20:50
stackoverflow.com

17 votes

What is the difference between open ball and neighborhood in real analysis?

real-analysis asked Jan 9, 2013 at 15:30
math.stackexchange.com

13 votes

Override function

ios swift asked Aug 26, 2016 at 17:48
stackoverflow.com

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