photo

Qiang Li


Last seen: Today |  Aktiv seit 2024

Followers: 0   Following: 0

Statistik

  • Thankful Level 2

Abzeichen anzeigen

Feeds

Anzeigen nach

Beantwortet
inv(A)*B*inv(A) or A\B/A, which is more accurate for a full rank A and half rank B
The short answer for my application: A\B/A. inv(A)*B*inv(A) introduces inconsistency after iterations.

17 Tage vor | 0

Beantwortet
Intel P +E or AMD for large (2000) Monte Carlo simulations
I went over this blog today, after having ordered the intel pc. To me, intel seems to be the safe bet. ttps://blogs.mathworks.c...

etwa ein Monat vor | 0

| akzeptiert

Frage


inv(A)*B*inv(A) or A\B/A, which is more accurate for a full rank A and half rank B
My matrices are A = [0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 6 0 0 0 0 0 0 0 0 24 0 0 0 0 ...

etwa ein Monat vor | 3 Antworten | 0

3

Antworten

Frage


matrix inverse results different between r2023b and 2021b
I was solving a high-dimensional nonlinear optimization problem with gradient descent method and found out that R2023b and R2021...

etwa ein Monat vor | 1 Antwort | 1

1

Antwort

Frage


Intel P +E or AMD for large (2000) Monte Carlo simulations
I'm about to build a new pc with running large Monte Carlo simulation in mind. I know that matlab doesn't benefit from threading...

etwa 2 Monate vor | 1 Antwort | 0

1

Antwort

Frage


polynomial multiplication not accurate, using conv() vs symbolic
I'm calculating the square of a polynomial inside a loop. It seems to me that, calculating it using conv() is resulting in large...

etwa 2 Monate vor | 1 Antwort | 1

1

Antwort