dyn_stack#

  • Series: lecture-dp

  • File: lectures/dyn_stack.md

  • Audit date: 2026-05-28

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

  • Overall score: 6.0 / 10

  • Priority: HIGH

Score breakdown#

Category

Score

One-line note

Writing

7/10

Mostly sentence-case headings; proper-noun capitalisation correct.

Math

4/10

Apostrophe transpose throughout LQ section; \vec used.

Code

8/10

Unicode Greek; pip install at top; PEP8; figsize used 3×.

JAX

out of scope

not a JAX lecture.

Figures

5/10

Three ax.set_title(...) calls and 3 Title-Case axis labels.

References

9/10

Citations parenthetical via {cite}; no narrative-author misuse.

Links

3/10

Five raw markdown links to python.quantecon.org / python-intro.quantecon.org instead of {doc}.

Admonitions

N/A

No exercises / proofs.

Issues#

Critical#

None found.

High severity#

  • [qe-math-002] — Apostrophe ' used as transpose throughout the LQ derivation (e.g. y' R y, u' Q u, B'PB, B'PA, A'PB, \Sigma_t A', CC', F'P F'). Lines: 355 onwards. Count: 30+ occurrences.

  • [qe-link-002] — Five raw markdown links to other QuantEcon series: python.quantecon.org/lagrangian_lqdp.html (line 42), python-intro.quantecon.org/lqcontrol.html (lines 324, 519), python-intro.quantecon.org/rational_expectations.html (line 814), python.quantecon.org/markov_perf.html (line 1411). Should be {doc} intersphinx references.

Medium severity#

  • [qe-math-004] — \vec a, \vec y, \vec u, \vec q used 24 times.

  • [qe-fig-003] — Three ax.set_title(...) calls. Lines: 1031, 1364, 1429.

  • [qe-fig-006] — Three Title-Case axis labels: set_xlabel('Time') etc.

Low severity#

  • [qe-fig-001] — figsize= set 3 times.

  • [qe-writing-001] — Several multi-sentence paragraphs.

Strengths#

  • Lecture title in correct Title Case.

  • H2/H3 headings mostly sentence case with proper-noun capitalisation (Stackelberg, Markov, Bellman).

  • Matrices use bmatrix consistently (42 matrix blocks).

  • Equation labels and {eq} references used cleanly.

  • “IID”/Greek-letter conventions consistent.

  • aligned used inside $$.

  • pip install at top; Unicode Greek.

  • No \tag, no bold vectors (apart from \vec), no align-inside-$$ issues.