Recent content by Phong

Hi! I have two sets of matrices where only the sign of each field might differ. I'm trying to calculate a generally applicable matrix that transforms the signs of the source matrix so it has the same signs like the target matrix. I tried calculating the inverse of the target matrix and...

Hi! I have a question concerning solving a system of linear equations. I know that the pseudoinverse matrix by using SVD is useful for this, but haven't gotten the pieces together yet. Let's assume I have this system of linear equations with each equation having one 3-component vector (V1)...

Hello! Thank you very much for your detailed reply. I must admit that I'm pretty new to transformation matrices and have not yet entirely understood the mathematical meaning of eigenvalues and eigenvectors although I try hard to understand everything I can read about it, but with some help I...

Hi! How do I calculate the angle of rotation for each axis by a given 4x4 transformation matrix? The thing is that all values are a kind of mixed up in the matrix, so I cannot get discrete values to start calculating with anymore. Thanks, Phong

Hi! I got a question concerning a solution to calculate the evolution of surface heights of oceans. Since I'm only interested in the surface itself I omit the volume underneath and the air above the surface. I grabbed a linearized and simplified version of the Bernouli-Equation which I looked...