math115: add adjacency matrix

2022-10-25 19:11:37 -04:00 · 2022-10-25 19:11:37 -04:00 · 1490247df7
commit 1490247df7
parent 9b22b626a1
1 changed files with 2 additions and 0 deletions
--- a/docs/ce1/math115.md
+++ b/docs/ce1/math115.md
@ -444,6 +444,8 @@ Properties of matrix multiplication, where $x\in \mathbb R$:
 - $(B+C)A = BA+ BC$
 - $(xA)B = x(AB) = A(xB)$

+In an **adjacency matrix**, the number of paths between points in exactly $x$ edges is equal to that entry in $A^x$.
+

 ### Matrix-vector product