FA-97494 / Knitting and sewing pattern grading / Member archive

Neckband pick-up counter: vertical ratio · case 04

A 40-row edge picks up 53 stitches instead of 30, flaring the band.

Member previewVariant 4 · 3 implementations · 8 checks per implementation

Case contract

Edges [kind, count]: vertical picks up 3 per 4 rows, diagonal 9 per 10 rows, each rounded half-up per edge; horizontal picks 1 per stitch; other kinds -> "error: edge". The rib needs a count of multiple*k + plus; adjust the total up to the next such count (unchanged if already valid). Return [raw_total, adjusted].

Why this case matters

Neckbands and button bands pick up stitches at edge ratios and must fit the rib repeat.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
front neck	`[128, 130]`	`[82, 82]`	Failed

MEMBER ARCHIVE

The complete case is available to members.

This record includes three runnable implementations, regression fixtures, execution results, and source hashes.

Member access is invitation-based. Sign in with your invited account to inspect the sources.