From 4e281bcad6d0cc2e7e5bae8e2fb4d33b4a1d5f00 Mon Sep 17 00:00:00 2001 From: zleyyij Date: Mon, 12 Feb 2024 20:58:22 -0700 Subject: [PATCH] vault backup: 2024-02-12 20:58:22 --- education/math/Matrices.md | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/education/math/Matrices.md b/education/math/Matrices.md index f6a45b1..bf3c518 100644 --- a/education/math/Matrices.md +++ b/education/math/Matrices.md @@ -13,7 +13,9 @@ $$ \end{bmatrix} $$ ## Multiplying matrices -To multiply two matrices, the *number of columns* for the first matrix must match the number of columns in the second. +To multiply two matrices, the *number of columns* for the first matrix must match the *number of rows* in the second. + +For example: the following matrices could be multiplied together because the number of columns To get answers, go through each entry in the second matrix, entry by entry, and multiply by every item in the matching row of the first one, then add all of those together.