User spektr - Mathematics Stack Exchange

spektr

Member for 9 years, 1 month
Last seen this week

United States

14 Answers

Score Activity Newest

6 votes

Why is the numerical solution of this equation unstable? Is this equation stiff?

answered Nov 23, 2015 at 5:14

2 votes

Second derivative of composition of vector function

answered Mar 12, 2018 at 16:59

2 votes

Accepted

jointly discrete continuous & discrete probability - conditioning on a range

answered Mar 31, 2020 at 1:00

1 vote

Closed form for Chu–Vandermonde identity-like summations

answered Nov 9, 2020 at 7:28

1 vote

Mapping Irregular Quadrilateral to a Rectangle

answered Oct 17, 2014 at 0:29

1 vote

Accepted

Solution to a modified linear system using two methods

answered Mar 7, 2019 at 17:47

1 vote

Accepted

Vectorized form of a Graph's Degree matrix?

answered Apr 4, 2019 at 17:11

1 vote

Lagrange polynomial in 3-D. Variable of interest is a vector.

answered Jan 16, 2017 at 0:16

1 vote

General solution to ODE

answered Jan 23, 2017 at 20:17

1 vote

Suggestions for a project in matlab

answered Mar 26, 2017 at 21:26

1 vote

Accepted

Can I obtain an analytical solution for the wave equation with a non-zero neumann BC?

answered Jan 15, 2018 at 7:20

0 votes

Accepted

Analysis of Coupon Collector variant with diminishing probabilities of finding a new coupon

answered Feb 26, 2020 at 17:45

0 votes

Least Squares for vector valued function

answered Mar 12, 2018 at 17:44

0 votes

Accepted

Probability a random number $M$ is not a factor of $N$

answered Apr 18, 2021 at 17:46