As of May 31, 2023, we have updated our Code of Conduct.

Brian Borchers

Member for 10 years, 7 months
Last seen this week

euler.nmt.edu/~brian
Socorro, NM

Summary

Reputation

18,219

18.2k
15.9k
13.6k

2020
2021
2022
2023

Next tag badge

92/100 score

20/20 answers

Badges

1

36

67

Newest

Nice Answer

Next badge

0/1

Excavator

Answers

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Score Activity Newest

68

why is A*v+B*v faster than (A+B)*v?

Jan 16, 2020

23

Scientific computing vs numerical analysis

Feb 12, 2017

23

Testing if a matrix is positive semi-definite

Jun 24, 2014

20

Tikhonov regularization in the non-negative least square - NNLS (python:scipy)

Feb 1, 2014

19

Should I rent computing resources, or buy my own computers

May 31, 2015

Questions

Score Activity Newest Views

12

Rapidly determining whether or not a dense matrix is of low rank

Jul 7, 2017

11

First appearance of the phrase "inverse crime"

Nov 9, 2017

3

Methods for interpolating from points that are not on a regular grid?

Dec 1, 2016

Tags

View all 139 tags

linear-algebra

442

Score

69

posts

optimization

417

Score

87

posts

matrix

232

Score

31

posts

matlab

170

Score

25

posts

convex-optimization

150

Score

37

posts

Reputation

+10

What is the most efficient way to write 'for' loops in Matlab?

+10

Efficient Triangularisation of $\mathbf{S} = \operatorname{triag}\left(\mathbf{A}\right)$ ; $\mathbf{S}\mathbf{S}^T = \mathbf{A} \mathbf{A}^T$

+10

Time and memory required to diagonalize a 18000 by 18000 matrix using numpy in python

+10

When and when not to use automatic differentiation

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Fanatic

Dec 12, 2016

36

silver badges

optimization

Feb 9, 2021
Pundit

Mar 26, 2018
Guru

Jan 21, 2020

67

bronze badges

constrained-optimization

Jan 7, 2020
convex-optimization

Mar 24, 2018
linear-programming

May 10, 2021

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Votes cast

311

upvotes

21

downvotes

32

question votes

300

answer votes