June 2018 Update

2018-06-22 20:57:24 +00:00 · 2018-06-22 20:57:24 +00:00 · 22f33d4004
commit 22f33d4004
parent ba8067c3b7
5278 changed files with 84726 additions and 14379 deletions
--- a/Task/Matrix-arithmetic/Stata/matrix-arithmetic-2.stata
+++ b/Task/Matrix-arithmetic/Stata/matrix-arithmetic-2.stata
@ -0,0 +1,19 @@
+: a=1,1,1,0\1,1,0,1\1,0,1,1\0,1,1,1
+: a
+[symmetric]
+       1   2   3   4
+    +-----------------+
+  1 |  1              |
+  2 |  1   1          |
+  3 |  1   0   1      |
+  4 |  0   1   1   1  |
+    +-----------------+
+
+: det(a)
+  -3
+
+: sumrec(a,-1)
+  -3
+
+: sumrec(a,1)
+  9