The .tex is no longer stale: regenerated from the canonical .md by build_tex.py (pandoc 3.1.3 + pdflatex on the server; marked GENERATED, never edited by hand). PDF: 28 pages, 0 errors, 0 undefined references, 0 overfull boxes. For LaTeX the .md got braces on four n_\max subscripts (fix_md_for_latex.py; rendering identical) and Table 10 was split into totals (10) and per-problem counts (10b) so that it fits a page; numbers unchanged. verify_article on the server 467 OK / 0 BAD; regression x2 1226 passed, 0 failed.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

fix_md_for_latex.py

@@ -0,0 +1,31 @@
+"""Make the math of article/sim_numerics.md valid LaTeX as well as MathJax: a sub- or
+superscript that starts with a bare control word (n_\\max) needs braces in LaTeX (n_{\\max}).
+The rendered formula is identical.  Reports what it finds; --apply writes.
+
+    python -u fix_md_for_latex.py [--apply]
+"""
+from __future__ import annotations
+
+import re
+import sys
+
+PATH = "article/sim_numerics.md"
+# only argument-less control words (n_\max); a macro with an argument (x_\mathrm{far},
+# r_\text{new}) is valid LaTeX as written, and bracing it would detach its argument
+PAT = re.compile(r"([_^])(\\[A-Za-z]+)(?![A-Za-z{])")
+
+
+def main():
+    with open(PATH, encoding="utf8") as fh:
+        text = fh.read()
+    hits = PAT.findall(text)
+    print(f"{len(hits)} bare control words in sub/superscripts:", sorted(set(h[1] for h in hits)))
+    if "--apply" in sys.argv:
+        text = PAT.sub(lambda m: f"{m.group(1)}{{{m.group(2)}}}", text)
+        with open(PATH, "w", encoding="utf8") as fh:
+            fh.write(text)
+        print("braced")
+
+
+if __name__ == "__main__":
+    main()