From 8faf06834ad8795b392933e42bd8ccedebaec5d6 Mon Sep 17 00:00:00 2001 From: Drew Lewis Date: Fri, 1 May 2026 20:51:39 +0000 Subject: [PATCH 1/7] Prefigure graph --- requirements.txt | 2 +- source/linear-algebra/source/04-MX/01.ptx | 35 ++++++++----------- .../04-MX/prefigure/MX1-adjacency-graph.xml | 29 +++++++++++++++ 3 files changed, 45 insertions(+), 21 deletions(-) create mode 100644 source/linear-algebra/source/04-MX/prefigure/MX1-adjacency-graph.xml diff --git a/requirements.txt b/requirements.txt index 7b656b322..802d969ae 100644 --- a/requirements.txt +++ b/requirements.txt @@ -1,5 +1,5 @@ pretext[prefigure] == 2.36.0 -prefig >= 0.5.7 +prefig >= 0.6.1 CodeChat-Server == 0.2.25 pelican == 4.11.0 markdown == 3.7.0 diff --git a/source/linear-algebra/source/04-MX/01.ptx b/source/linear-algebra/source/04-MX/01.ptx index fe6097bee..1033f960e 100644 --- a/source/linear-algebra/source/04-MX/01.ptx +++ b/source/linear-algebra/source/04-MX/01.ptx @@ -367,30 +367,25 @@ in terms of matrix multiplication.

- - -

Use the included map in this problem.

-
- Adjacency map, showing roads between 5 cities - - A map with 5 dots. A is connected to B, B is connected to C, C is connected to D and E, and D and E are connected to each other - -\tikz{\node[shape=circle,draw=black] (A) at (0,0) {A}; - \node[shape=circle,draw=black] (B) at (0,2) {B}; - \node[shape=circle,draw=black] (C) at (0,4) {C}; - \node[shape=circle,draw=black] (D) at (-2,6) {D}; - \node[shape=circle,draw=black] (E) at (2,6) {E}; - \draw (A)--(B)--(C)--(D)--(E)--(C)} - - -
+ + +

Use the included map in this problem.

+
+ Adjacency map, showing roads between 5 cities + + A map with 5 dots. A is connected to B, B is connected to C, C is connected to D and E, and D and E are connected to each other + + + + +
  • An adjacency matrix for this map is a matrix that has the number of roads from city i to city j in the (i,j) entry of the matrix. A road is a path of length exactly 1. All (i,i)entries are 0. Write the adjacency matrix for this map, with the cities in alphabetical order.
    • -
  • What does the square of this matrix tell you about the map? The cube? The n-th power?
    • -
- +
  • What does the square of this matrix tell you about the map? The cube? The n-th power?
    • + +     diff --git a/source/linear-algebra/source/04-MX/prefigure/MX1-adjacency-graph.xml b/source/linear-algebra/source/04-MX/prefigure/MX1-adjacency-graph.xml new file mode 100644 index 000000000..cdfb5c98d --- /dev/null +++ b/source/linear-algebra/source/04-MX/prefigure/MX1-adjacency-graph.xml @@ -0,0 +1,29 @@ + + graph={"A":["B"],"B":["C"],"C":["D","E"],"D":["E"]} + + + + + + + + + + + + + + + + + + + + + + + + \ No newline at end of file From 06cf373c11196ef61e81e67b4b6e45d689329f0f Mon Sep 17 00:00:00 2001 From: Drew Lewis Date: Fri, 1 May 2026 21:21:23 +0000 Subject: [PATCH 2/7] More tinkering --- source/linear-algebra/source/04-MX/01.ptx | 4 ++-- .../04-MX/prefigure/MX1-adjacency-graph-copy.xml | 13 +++++++++++++ .../source/04-MX/prefigure/MX1-adjacency-graph.xml | 2 +- 3 files changed, 16 insertions(+), 3 deletions(-) create mode 100644 source/linear-algebra/source/04-MX/prefigure/MX1-adjacency-graph-copy.xml diff --git a/source/linear-algebra/source/04-MX/01.ptx b/source/linear-algebra/source/04-MX/01.ptx index 1033f960e..d20170fe0 100644 --- a/source/linear-algebra/source/04-MX/01.ptx +++ b/source/linear-algebra/source/04-MX/01.ptx @@ -372,10 +372,10 @@ in terms of matrix multiplication.

    Use the included map in this problem.

    Adjacency map, showing roads between 5 cities - + A map with 5 dots. A is connected to B, B is connected to C, C is connected to D and E, and D and E are connected to each other - +
    diff --git a/source/linear-algebra/source/04-MX/prefigure/MX1-adjacency-graph-copy.xml b/source/linear-algebra/source/04-MX/prefigure/MX1-adjacency-graph-copy.xml new file mode 100644 index 000000000..2506161de --- /dev/null +++ b/source/linear-algebra/source/04-MX/prefigure/MX1-adjacency-graph-copy.xml @@ -0,0 +1,13 @@ + + + graph={0:[1,2],1:[3,4],2:[5,6],3:[7,8],4:[9,10],5:[11,12],6:[13,14]} + + + + + + + + + \ No newline at end of file diff --git a/source/linear-algebra/source/04-MX/prefigure/MX1-adjacency-graph.xml b/source/linear-algebra/source/04-MX/prefigure/MX1-adjacency-graph.xml index cdfb5c98d..13f3d9699 100644 --- a/source/linear-algebra/source/04-MX/prefigure/MX1-adjacency-graph.xml +++ b/source/linear-algebra/source/04-MX/prefigure/MX1-adjacency-graph.xml @@ -1,4 +1,4 @@ - + graph={"A":["B"],"B":["C"],"C":["D","E"],"D":["E"]} Date: Fri, 1 May 2026 21:28:54 +0000 Subject: [PATCH 3/7] Finally a working implementation --- source/linear-algebra/source/04-MX/01.ptx | 2 +- .../04-MX/prefigure/MX1-adjacency-graph.xml | 40 +++++++++++-------- 2 files changed, 25 insertions(+), 17 deletions(-) diff --git a/source/linear-algebra/source/04-MX/01.ptx b/source/linear-algebra/source/04-MX/01.ptx index d20170fe0..ba85f7e32 100644 --- a/source/linear-algebra/source/04-MX/01.ptx +++ b/source/linear-algebra/source/04-MX/01.ptx @@ -375,7 +375,7 @@ in terms of matrix multiplication.

    A map with 5 dots. A is connected to B, B is connected to C, C is connected to D and E, and D and E are connected to each other - + diff --git a/source/linear-algebra/source/04-MX/prefigure/MX1-adjacency-graph.xml b/source/linear-algebra/source/04-MX/prefigure/MX1-adjacency-graph.xml index 13f3d9699..4cac2746f 100644 --- a/source/linear-algebra/source/04-MX/prefigure/MX1-adjacency-graph.xml +++ b/source/linear-algebra/source/04-MX/prefigure/MX1-adjacency-graph.xml @@ -1,29 +1,37 @@ - - graph={"A":["B"],"B":["C"],"C":["D","E"],"D":["E"]} - - + + + A + B + C + D + E + + + + + - - + + - - + + - - - + + + - - + + - + \ No newline at end of file From 655bacbb68e775a7d6e5bbe2341cc6855f449453 Mon Sep 17 00:00:00 2001 From: Drew Lewis Date: Fri, 1 May 2026 21:29:37 +0000 Subject: [PATCH 4/7] Remove test file --- .../04-MX/prefigure/MX1-adjacency-graph-copy.xml | 13 ------------- 1 file changed, 13 deletions(-) delete mode 100644 source/linear-algebra/source/04-MX/prefigure/MX1-adjacency-graph-copy.xml diff --git a/source/linear-algebra/source/04-MX/prefigure/MX1-adjacency-graph-copy.xml b/source/linear-algebra/source/04-MX/prefigure/MX1-adjacency-graph-copy.xml deleted file mode 100644 index 2506161de..000000000 --- a/source/linear-algebra/source/04-MX/prefigure/MX1-adjacency-graph-copy.xml +++ /dev/null @@ -1,13 +0,0 @@ - - - graph={0:[1,2],1:[3,4],2:[5,6],3:[7,8],4:[9,10],5:[11,12],6:[13,14]} - - - - - - - - - \ No newline at end of file From 74e5cd63c1e9f8ba030b4c677ff0135de0bf8783 Mon Sep 17 00:00:00 2001 From: Drew Lewis Date: Fri, 1 May 2026 21:39:04 +0000 Subject: [PATCH 5/7] Bump pretext version --- requirements.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/requirements.txt b/requirements.txt index 802d969ae..472f13741 100644 --- a/requirements.txt +++ b/requirements.txt @@ -1,4 +1,4 @@ -pretext[prefigure] == 2.36.0 +pretext[prefigure] == 2.38.3 prefig >= 0.6.1 CodeChat-Server == 0.2.25 pelican == 4.11.0 From 2dd27e9371bf9df55b024fd208e0b7932bbde897 Mon Sep 17 00:00:00 2001 From: Drew Lewis Date: Fri, 1 May 2026 21:53:26 +0000 Subject: [PATCH 6/7] Try not quite as recent prefig --- requirements.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/requirements.txt b/requirements.txt index 472f13741..73e14bd1d 100644 --- a/requirements.txt +++ b/requirements.txt @@ -1,5 +1,5 @@ pretext[prefigure] == 2.38.3 -prefig >= 0.6.1 +prefig >= 0.5.15 CodeChat-Server == 0.2.25 pelican == 4.11.0 markdown == 3.7.0 From 1d2fe2cf822ed16ac01a5216731ec9a3ad983612 Mon Sep 17 00:00:00 2001 From: Drew Lewis Date: Fri, 1 May 2026 21:57:13 +0000 Subject: [PATCH 7/7] Unbump pretext version --- requirements.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/requirements.txt b/requirements.txt index 73e14bd1d..3abad43ac 100644 --- a/requirements.txt +++ b/requirements.txt @@ -1,4 +1,4 @@ -pretext[prefigure] == 2.38.3 +pretext[prefigure] == 2.36.0 prefig >= 0.5.15 CodeChat-Server == 0.2.25 pelican == 4.11.0