[AMR] updated first 4.5 sections

2026-09-10 19:15:25 +02:00 · 2026-08-08 12:31:01 +02:00
parent 7cdba7dca9
commit c1bdbc64bf
20 changed files with 103 additions and 55 deletions
@@ -5,6 +5,8 @@
 \shortdefinition[Orthogonal vec] $v^\top w = 0$;
 \shortdefinition[Vec Line Eq] $\vec{p} + \lambda \vec{d}$

-\shortdefinition[Determinant] $ad - bc$ for mat $[a, b; c, d]$
+\shortdefinition[Determinant] $ad - bc$ for mat $[a, b; c, d]$.

-\shortdefinition[Eigenvalues] Solve $\det(M - \lambda I) = 0$
+\shortdefinition[Eigenvalues] Solve $\det(M - \lambda I) = 0$.
+
+\shortremark[Matrix Inverse] For diagonal, inverse of diag els