MATCH, XMATCH, VLOOKUP, HLOOKUP, XLOOKUP and LOOKUP compared numbers at
15 significant digits (through compare / compare_numbers), so a computed
key such as =0.1+0.2 (0.30000000000000004) found 0.3. Excel 365 compares
lookup keys exactly in exact, approximate and binary search modes, while
=, SWITCH and the criteria functions (COUNTIF(S), SUMIF(S), AVERAGEIF,
MAXIFS) keep the 15-digit comparison. Observed in Excel via COM with
synthetic values.
lookup_equal now compares numbers with ==, and the lookup searches order
values with lookup_order (exact for numbers, compare otherwise).
compare_numbers and the criteria path are unchanged.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Checked against Excel-cached TEXT() results in number- and text-format test workbooks: 226 of 352 TEXT cells mismatched before, 0 after.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
AAA exponential smoothing (Hyndman et al. 2008, ETS(A,A,A)) over an evenly
spaced timeline: documented seasonality, data completion and aggregation
arguments, calendar-month date timelines, autocorrelation seasonality
detection, state-space prediction intervals, statistic types 1-8.
Smoothing parameters minimise the in-sample SSE (grid + clamped
Nelder-Mead). XLSX export treats the family's range arguments as
array-taking (no spurious dynamic-array metadata), FORECAST/FORECAST.LINEAR
included.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Evaluator special form returning the range (or array) without its blank
outer rows and columns; trim codes 0-3 as documented; written as
_xlfn.TRIMRANGE. The trim-reference operators are not parsed yet.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Thai number words with บาท / สตางค์ / ถ้วน, rounded to satang, ล้าน
repeating per six digits, ลบ for negatives.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
PERCENTOF = SUM(subset) / SUM(all), written as _xlfn.PERCENTOF.
EUROCONVERT uses the fixed EU conversion rates for the currencies the
function documents, with currency rounding and triangulation precision.
New Add-in category for EUROCONVERT.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Odd first and last coupon periods via quasi-coupon periods, from the
formulas on Microsoft's public function pages. ODDLYIELD is closed form;
ODDFYIELD bisects ODDFPRICE (bounded). Financial is now 55 / 55.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Progress docs per craftrules standards/progress-docs.md: target-app parity, gaps, roadmap with alpha gate, readiness by audience (full / mainstream / essentials) with Opus 5.5 hours, and feature, format, hardware, UI and localization parity docs.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
