Trace, Determinant 函数的导数
参考文献是 [1] 。
1. Trace
从8. Gradient Matrices of Trace Functions开始看，前面的背景不一定要看。
2. Determinant
TODO
References
- Athans, Michael, and Fred C. Schweppe. Gradient matrices and matrix calculations. MASSACHUSETTS INST OF TECH LEXINGTON LINCOLN LAB, 1965.