6d1a89b45b04d259b514404151c90db6a7c3d7ea
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Ran 05 Jul 2026 07:42PM UTC

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Committed 05 Jul 2026 07:41PM UTC coverage: 100.0%. Remained the same

Build # 6d1a89b45b04d259b514404151c90db6a7c3d7ea

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web-flow

Commit Message

Add regression corpus from numpy-financial and java-xirr issues (#25)

Cash flows from closed issues where those libraries returned a wrong rate,
raised, or failed to converge, each now pinned against finance-elixir:

- numpy-financial: #44 (negative final flow), #46 (second-period outlay),
  #98 (multiple roots), #15 (vanishing flows that raised LinAlgError).
- java-xirr: #17 and #14 match Google Sheets / Excel to 8 decimals, #12
  recovers the reporter's 18.84%, and #5/#7/#10/#16 resolve series that
  raised NonconvergenceException, zero-derivative, or overflow.

Roots are checked scale-relative (NPV negligible next to the largest flow),
since a near--100% or 1e9-magnitude root leaves a non-zero absolute NPV.


Claude-Session: https://claude.ai/code/session_01AVibXT2w1dEdVtMHqffFKn

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

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ID	Job ID	Ran	Files	Coverage
1	6d1a89b45b04d259b514404151c90db6a7c3d7ea.1	05 Jul 2026 07:42PM UTC	12	100.0	GitHub Action Run

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