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fix: proofread solutions for Part Golf - #86

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Jun 19, 2026
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Closes #63.

Proofread src/sol-golf.typ (solutions for Part Golf). Found and fixed:

  • exer-slicing-standard: a missing closing-slash escape, x^(401\2) instead of x^(401\/2), broke the typeset fraction exponent in the second (y-inside) computation.
  • exer-slicing-standard: missing period after "solving $sqrt(x) = x^3$".
  • exer-rat-slice: the figure caption swapped the order of the nested roots (root(5, root(3,x)+1) instead of root(3, root(5,x)+1)), inconsistent with the inequality derived directly below it and with the original problem statement.
  • exer-rat-slice: the area integral for the "dark blue region" used wrong upper limits of integration (int_(y=1)^2 ... = int_(y=1)^N ...) instead of int_(y=1)^(10), inconsistent with the correct upper limit of 10 used in the very next line (and confirmed by the fact that the integrand's max value, at $x = 999^5$, is exactly 10).
  • exer-rat-slice: grammar, "This is a easily seen" → "This is easily seen".
  • exer-polar1: region description omitted the $y >= 0$ constraint needed to pin down the first-quadrant quarter-disk.
  • exer-polar3: duplicated preposition in figure caption, "integrals $I_1$ and $I_2$ of from @sec-offset-circle" → "... from @sec-offset-circle".

I independently re-derived all the boxed final answers ($5/283712$, $(9/20, 9/20)$ center of mass, $1/15$, the rational total area, $9 log 2$, $1/8$, $4$, and $32/9$) and verified them against the corresponding problem statements in src/double.typ, src/chvar.typ, and src/polar.typ. No large mathematical errors were found.

Test plan

  • Installed typst 0.15.0 and the @local/evan:1.0.0 package plus required @preview deps, then ran typst compile lamv.typ end-to-end (with placeholder SVGs standing in for Asymptote figures, since asy isn't available in this environment) — compiles cleanly with no errors.
  • Ran codespell on the file — no issues.

Generated by Claude Code

Closes #63.

Proofread src/sol-golf.typ (solutions for Part Golf). Found and fixed:

- exer-slicing-standard: a missing closing-slash escape, x^(401\2)
  instead of x^(401\/2), broke the typeset fraction exponent in the
  second (y-inside) computation.
- exer-slicing-standard: missing period after "solving $sqrt(x) = x^3$".
- exer-rat-slice: the figure caption swapped the order of the nested
  roots (root(5, root(3,x)+1) instead of root(3, root(5,x)+1)),
  inconsistent with the inequality derived directly below it and with
  the original problem statement.
- exer-rat-slice: the area integral for the "dark blue region" used
  wrong upper limits of integration (int_(y=1)^2 ... = int_(y=1)^N ...)
  instead of int_(y=1)^(10), inconsistent with the correct upper limit
  of 10 used in the very next line (and confirmed by the fact that the
  integrand's max value, at x = 999^5, is exactly 10).
- exer-rat-slice: grammar, "This is a easily seen" -> "This is easily
  seen".
- exer-polar1: region description omitted the y >= 0 constraint needed
  to pin down the first-quadrant quarter-disk.
- exer-polar3: duplicated preposition in figure caption, "integrals
  $I_1$ and $I_2$ of from @sec-offset-circle" -> "... from
  @sec-offset-circle".

I independently re-derived all the boxed final answers (5/283712,
9/20 center of mass, 1/15, the rational total area, 9 log 2, 1/8, 4,
and 32/9) and verified them against the corresponding problem
statements in src/double.typ, src/chvar.typ, and src/polar.typ; no
large mathematical errors were found. Verified the fix by installing
typst 0.15.0 and the @local/evan:1.0.0 + required @Preview packages and
running `typst compile lamv.typ` end-to-end (with placeholder SVGs
standing in for Asymptote figures) — compiles cleanly with no errors.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01AzrAYBuN6NCcDkkC9ihAVJ
@vEnhance
vEnhance merged commit 9dcba60 into main Jun 19, 2026
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@vEnhance vEnhance added the proofreading-campaign Systematically proofread the textbook label Jun 19, 2026
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Proofread solutions for Part Golf

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