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f1ba015cc3
At high rate and long duration the rounded instalment converges to C*i from above and lands exactly on the first month's interest, leaving zero principal: at 99 % the frontier is 294 months for the maximum capital. The schedule would never terminate. Checking the first month suffices: once principal is positive the outstanding capital decreases, so interest decreases and principal grows. The check must stay after the bounds checks, since it calls monthly_repayment() and that function's expect() is justified by them. creating_loan_offer_with_limit_inputs_works asserted that the three maxima combined were valid, which this invariant makes false. The valid domain is no longer a box. It is replaced by the corner that actually maximises the instalment, duration 1, at 1 082 499 999,99 EUR against 82 500 000,00 EUR for the corner it tested before. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> |
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| Cargo.toml | ||
| CLAUDE.md | ||
| rust-toolchain.toml | ||