329 karma · joined November 1, 2021
https://hamrobazaar.com/user/D56454A3-F1F2-4771-BAA1-5E0482B...
I have stumbled upon this seller. However unsure which are of value, and how to even decide? They seem expensive. I would not want to spend half of the price that I would on a new powerful laptop in a second hand device.
The intent of government can be questioned however But this is a right step in a forward direction anyhow.
This should have been done far earlier.
The blocks has been propagated fairly now. I cannot access facebook, whatsapp, linkedin, reddit (major sites, others I have not checked).
https://www.cairographics.org/cookbook/matrix_conventions/
The reason behind this is called pre-multiplication vs post-multiplication technique of matrix transformation.
Post-multiplication
- transformation matrix appears after the position vector matrix
- position vector matrix in homogenous coordinates is represented as a row matrix.
Pre-multiplication
- transformation matrix appears before the position vector matrix
- here the position vectors in homogenous coordinates are represented in column matrix.
Textbook reference: Mathematical elements for computer graphics Rogers/Adams