Debugging ~6 min · ~24 min remaining

Diagnose parametric scripts

Connect symptoms to causes: units, incorrectly sized arrays, and unclosed loops.

Bug hunt

Download 01_bug_hunt.mac. Don't run it yet. Find five flaws:

For each defect write: probable symptom, cause and minimal correction.

Quick check

A *DO loop does not iterate. What would you check first?

The loop's initial and final limits, and whether the increment moves toward the final value. The result contour color. Change the element type.

Professional incident

The sweep repeats rows or mixes parameter units.

Evidence to retain

Initial hypothesis Changed line or block Output proving the cause Reusable prevention rule

What evidence separates the root cause from a lucky edit?

Graduated hints

1 · Concept hint

Find the first broken contract.

2 · Command hint

Inspect state related to *DO, *SET, and *VWRITE.

3 · Explained solution

Compare with the module deliverable and explain why the corrected state restores the contract.

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