# Notes

This is mostly a place for me to record working and write about things while I still understand them.

- Equivalence of constraint and regularizer under strong duality Feb 28, 2019
- Variance of a function of two random variables May 16, 2018
- Differentials for back-propagation Sep 4, 2016
- Derivative of non-linear least-squares minimiser Aug 31, 2015
- Derivative of linear least-squares minimiser Aug 31, 2015
- Convolution and the Discrete Trigonometric Transforms Jul 14, 2015
- Solving linear equations: Which factorisation to use? Apr 5, 2015
- Generating symmetric positive semi-definite Toeplitz matrices Mar 28, 2015
- Support vector regression dual Feb 26, 2015
- SVM with linear features Feb 4, 2015
- Mathematics of the twelve note musical scale Jan 15, 2015
- Asymmetric least squares Jan 13, 2015
- Optimal padding for convolution with the FFT Oct 5, 2014
- Linear discriminant analysis and unsupervised covariance Oct 1, 2014
- Ridge regression and its dual problem Sep 3, 2014
- Jing Xiao's closed-form NRSfM Aug 2, 2014