From e800aa9d8407bf647fb1da5f97f726cc3129bd8a Mon Sep 17 00:00:00 2001 From: Matt McKay Date: Wed, 23 Sep 2026 16:05:40 +1000 Subject: [PATCH] [numpy] Remove the duplicated {index} directive under Matrix Multiplication The "Matrix Multiplication" section carried the same `{index} single: NumPy; Matrix Multiplication` directive twice, back to back, so the general index listed the entry twice. Remove the second. The French edition already removed its copy (see QuantEcon/lecture-python-programming.fr#24), which leaves its numpy.md one directive short of the source; every French sync of numpy.md has since failed the translation engine's structural-parity check. No prose or code changes. Closes #600 Co-Authored-By: Claude Opus 5.5 (1M context) --- lectures/numpy.md | 3 --- 1 file changed, 3 deletions(-) diff --git a/lectures/numpy.md b/lectures/numpy.md index 7d3eda07..d43c6d3a 100644 --- a/lectures/numpy.md +++ b/lectures/numpy.md @@ -434,9 +434,6 @@ In particular, `A * B` is *not* the matrix product, it is an element-wise produc ```{index} single: NumPy; Matrix Multiplication ``` -```{index} single: NumPy; Matrix Multiplication -``` - We use the `@` symbol for matrix multiplication, as follows: ```{code-cell} python3