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Feb
2
asked $A: \mathbb R^3 \to \mathbb R^3$ what is the representation of $A$ under coordinate change? (Tensor)
Jan
21
awarded  Yearling
Dec
19
awarded  Notable Question
Dec
12
accepted Is the eigenspace of a matrix $A$ equal to its column space?
Nov
29
accepted Supposedly easy question, at what speed does the plank hit the floor?
Nov
29
comment Supposedly easy question, at what speed does the plank hit the floor?
Thanks for the answer. I edited the minus sign, it was indeed a mistake. This is a question from a high school student I am tutoring and I could not believe this was actually the right answer.
Nov
29
revised Supposedly easy question, at what speed does the plank hit the floor?
edited body
Nov
29
asked Supposedly easy question, at what speed does the plank hit the floor?
Nov
9
accepted Effect of the Tikhonov regularization on the Least Squares solution.
Nov
9
comment Effect of the Tikhonov regularization on the Least Squares solution.
Thanks for the nice answer!
Nov
9
asked Effect of the Tikhonov regularization on the Least Squares solution.
Jun
24
comment Is the eigenspace of a matrix $A$ equal to its column space?
Thanks for the answer!
Jun
24
reviewed Approve Is the eigenspace of a matrix $A$ equal to its column space?
Jun
24
asked Is the eigenspace of a matrix $A$ equal to its column space?
Jun
24
awarded  Popular Question
Jun
15
comment Finding the last nonzero digit of the factorial of a large number
Exactly but when we get above ten we cannot simply omit 12 and 15 for instance as they multiply to 180 which does change the last non zero digit, besides adding an extra zero digit.
Jun
15
comment Finding the last nonzero digit of the factorial of a large number
For $f(10)$ we would be fine if we leave out both 2 and 5 as they multiply to form 10, but that no longer works when we get above 10.
Jun
15
comment Finding the last nonzero digit of the factorial of a large number
thanks for your answer, I was thinking about something along these lines. However, we have for instance that $f(10) = 8$, while the last digit of $10!/5$ is not 8.
Jun
15
asked Finding the last nonzero digit of the factorial of a large number
May
12
asked Galerkin method for the following integral equation