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Matthew Gunn's user avatar
Matthew Gunn's user avatar
Matthew Gunn's user avatar
Matthew Gunn
  • Member for 8 years, 7 months
  • Last seen this week
3 votes
Accepted

Is it possible to evaluate the value of x+z?

2 votes
Accepted

$AB$ is singular $\Leftrightarrow $ $A$ or $B$ is singular

2 votes
Accepted

When no solution exists, how do you satisfy as many constraints as possible?

2 votes

On degenerate linear systems

2 votes
Accepted

A system of linear equations has a solution iff $b \in Span(\text{col} (A))$?

1 vote

How to find the probability of getting queens using combination or premutations?

1 vote

Orthogonal decomposition of block matrix in terms of SVD

1 vote

Calculating confident intervals for the expected daily returns

1 vote

Nominal Rates/Effective rate computation, confusion.

1 vote
Accepted

Approximation by using Taylor Polynomials - why?

1 vote

Ito integral for Brownian motion

1 vote

Is $S = \{(x,y) : y = e^x\}$ is convex or not?

1 vote
Accepted

A Chi-Squared fit of a general quadratic polynomial is done to ten data points. What is the number of degrees of freedom of this fit?

1 vote

Understand simple problem on inflation

0 votes

Section on Moore-Penrose Pseudoinverse in the Deep Learning book

0 votes

check if estimation is unbiased?

0 votes
Accepted

Pick a number that is better than your friends

0 votes

if $\int_0^4 f(x)dx = 5$ then $\int_0^2 f(x)dx=2.5$?

0 votes

Prove convexity of three similar sets

0 votes

Modifying the result matrices of SVD so that $\Sigma$ is canonical form