User Victor Liu - Mathematics Stack Exchange

11 votes

Convergence of $\sum^\infty_{n=1} \ln(1+\frac 1 {2^n})$

answered Mar 2, 2015 at 20:24

10 votes

Accepted

Why is the Householder matrix orthogonal?

answered Jun 30, 2015 at 19:21

7 votes

Accepted

Eigenvectors of almost-Toeplitz tridiagonal matrix.

answered Mar 13, 2015 at 0:55

7 votes

Determinant of a matrix with $t$ in all off-diagonal entries.

answered Aug 14, 2014 at 17:26

7 votes

Accepted

Numerically stable extraction of Axis-Angle from Unit Quaternion

answered Oct 13, 2014 at 17:50

6 votes

Accepted

Trisecting an angle

answered Dec 13, 2014 at 8:10

6 votes

"All positive solution" to system of linear equations

answered Feb 21, 2015 at 0:52

5 votes

Accepted

Eigenvectors in Matlab/Octave, function "eig()", why are the eigenvectors output like that?

answered Feb 4, 2015 at 20:27

5 votes

Accepted

Rewriting the matrix equation $AX = YB$ as $Y = CX$?

answered Jul 28, 2014 at 6:00

5 votes

Accepted

Test for the intersection of two $N$-dimensional ellipsoids

answered Aug 9, 2011 at 3:07

5 votes

How to calculate this shape's volume

answered Apr 30, 2014 at 16:58

4 votes

Find $DF$ in a triangle $DEF$

answered Jan 26, 2012 at 5:01

4 votes

Lower bounds on eigenvalues of a symmetric matrix based on the diagonals

answered Aug 14, 2014 at 17:55

4 votes

Accepted

Surface normal to point on displaced sphere

answered Dec 17, 2014 at 6:24

4 votes

Can $A$ be singular

answered Oct 29, 2014 at 23:16

4 votes

Diagonalizing Quadratic Forms. Linear Algebra

answered Nov 7, 2014 at 22:29

4 votes

Accepted

Area of ellipse not in xy-plane

answered Feb 10, 2015 at 7:38

4 votes

Accepted

How to calculate integral involving Bessel function?

answered Jan 16, 2015 at 21:06

3 votes

How do I find the norm of a matrix?

answered Feb 12, 2015 at 0:37

3 votes

Why do I get a big relative error for my function? (Numerical Analisys - floating point)

answered Mar 18, 2015 at 18:49

3 votes

Find the ratio of curved surface area of frustum to the cone.

answered May 21, 2015 at 18:26

3 votes

Accepted

Scalar derivative of the von Neumann entropy $ x \mapsto \operatorname{tr} \left( {\bf A} (x) \log {\bf A} (x) \right) $

answered Jun 21, 2015 at 16:17

3 votes

Numerical precision of arctan function

answered Jun 22, 2015 at 17:50

3 votes

Why for random matrix one of eigenvalues is so big?

answered Oct 23, 2014 at 16:28

3 votes

Accepted

Fallacy - where is the mistake?

answered Oct 20, 2014 at 22:10

3 votes

Invent transformation mapping ellipsoid to unit sphere

answered Nov 20, 2014 at 20:18

3 votes

Damped oscillation fit

answered Aug 8, 2014 at 22:38

3 votes

Cholesky Decomposition and Orthogonalization

answered Sep 8, 2014 at 18:46

3 votes

Segmented area between circles

answered Jun 21, 2012 at 5:15

3 votes

Accepted

eigendecomposition of a symmetric singular matrix and definition of unitary matrix

answered Sep 20, 2011 at 9:59

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129 Answers

Convergence of $\sum^\infty_{n=1} \ln(1+\frac 1 {2^n})$

Why is the Householder matrix orthogonal?

Eigenvectors of almost-Toeplitz tridiagonal matrix.

Determinant of a matrix with $t$ in all off-diagonal entries.

Numerically stable extraction of Axis-Angle from Unit Quaternion

Trisecting an angle

"All positive solution" to system of linear equations

Eigenvectors in Matlab/Octave, function "eig()", why are the eigenvectors output like that?

Rewriting the matrix equation $AX = YB$ as $Y = CX$?

Test for the intersection of two $N$-dimensional ellipsoids

How to calculate this shape's volume

Find $DF$ in a triangle $DEF$

Lower bounds on eigenvalues of a symmetric matrix based on the diagonals

Surface normal to point on displaced sphere

Can $A$ be singular

Diagonalizing Quadratic Forms. Linear Algebra

Area of ellipse not in xy-plane

How to calculate integral involving Bessel function?

How do I find the norm of a matrix?

Why do I get a big relative error for my function? (Numerical Analisys - floating point)

Find the ratio of curved surface area of frustum to the cone.

Scalar derivative of the von Neumann entropy $ x \mapsto \operatorname{tr} \left( {\bf A} (x) \log {\bf A} (x) \right) $

Numerical precision of arctan function

Why for random matrix one of eigenvalues is so big?

Fallacy - where is the mistake?

Invent transformation mapping ellipsoid to unit sphere

Damped oscillation fit

Cholesky Decomposition and Orthogonalization

Segmented area between circles

eigendecomposition of a symmetric singular matrix and definition of unitary matrix