navy_captain

• Series: lecture-python.myst

• File: lectures/navy_captain.md

• Audit date: 2026-05-28

• Categories audited: writing, math, code, figures, references, links, admonitions

• Overall score: 8.2 / 10

• Priority: LOW

Score breakdown

Category	Score	One-line note
Writing	7/10	Many section headings use Title Case rather than sentence case.
Math	9/10	Bare E[...] or \Pr(...) used instead of \mathbb{E}, \mathbb{P}.
Code	8.5/10	Spelled-out Greek (alpha/beta/etc.) used predominantly in code; mixed with unicode forms…
JAX	out of scope	not a JAX lecture
Figures	6.5/10	figsize= set in 6 places — usually unnecessary.
References	N/A	No citations.
Links	10/10	Link style follows conventions.
Admonitions	N/A	No admonitions.

Issues

Critical

None found.

High severity

• [qe-writing-006] — Many section headings use Title Case rather than sentence case. Examples: line 208, line 461, line 779. Count: 7.

• [qe-fig-003] — ax.set_title() / fig.suptitle() used 13 times outside exercise blocks. Examples: line 193, line 326, line 400.

Medium severity

• [qe-math-010 (proposed)] — Bare E[...] or \Pr(...) used instead of \mathbb{E}, \mathbb{P}. Examples: line 248. Count: 4.

• [qe-code-002] — Spelled-out Greek (alpha/beta/etc.) used predominantly in code; mixed with unicode forms (word=9, uni=4).

Low severity

• [qe-fig-001] — figsize= set in 6 places — usually unnecessary.

• [qe-fig-005] — Figures lack descriptive name: fields for cross-referencing (20 plot calls, 0 named).

• [qe-fig-008] — lw=2 parameter missing from 20 .plot() calls.

Strengths

• Uses “IID” or no IID terminology.

• Transpose notation uses \top consistently (no prime/^T).

• No bold vectors/matrices.

• Normal distribution written as plain N.

• aligned (not align) used in $$ math.

• Axis labels lowercase.

Recommended actions

1. Address qe-writing-006: Many section headings use Title Case rather than sentence case.

2. Address qe-fig-003: ax.set_title() / fig.suptitle() used 13 times outside exercise blocks.

3. Address qe-math-010 (proposed): Bare E[...] or \Pr(...) used instead of \mathbb{E}, \mathbb{P}.

4. Address qe-code-002: Spelled-out Greek (alpha/beta/etc.) used predominantly in code; mixed with unicode forms (word=9, uni=4).

5. Address qe-fig-001: figsize= set in 6 places — usually unnecessary.