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Calc: INDEX with one index on a 2-D reference is #REF!, as in Excel

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INDEX(A1:C3,2) returned the whole second row. Excel gives #REF! when a
reference has several rows and columns and the column argument is
omitted, so the error also carries into ranges built from it
(A1:INDEX(A1:C3,2)), position arrays (INDEX(A1:C3,{1;2})) and outer
functions. An empty column argument (INDEX(A1:C3,2,)) still gives the
row, and arrays are unchanged: INDEX({1,2;3,4},2) is the row.

Observed in Excel that a column array with one index,
INDEX({10;20;30},2), is a 1x1 array (TYPE 64), which is what calc
already returned; the new test pins it.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Harrison Booth
2026-10-15 05:19:32 -05:00
co-authored by Claude Opus 5.5
parent e6b6b34970
commit 6db94d154a
4 changed files with 87 additions and 3 deletions
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docs/function-parity.md
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@@ -1,6 +1,6 @@
# Function parity: worksheet functions and formulas
> **Last reviewed:** 2026-10-11 · **Last updated:** 2026-10-12 · **Change:** minor (USDOLLAR added as a compatibility function; MIRR, COUNTIF and INDIRECT edge cases match Excel 365) · **Target:** Microsoft Excel (Microsoft 365), Excel for Mac 16.113.4
> **Last reviewed:** 2026-10-11 · **Last updated:** 2026-10-15 · **Change:** minor (INDEX with one index on a reference of several rows and columns is #REF! as in Excel) · **Target:** Microsoft Excel (Microsoft 365), Excel for Mac 16.113.4
Excel's worksheet functions, category by category, against GridCraft's function library. Part of
[target-app-parity.md](target-app-parity.md); gaps feed [gaps.md](gaps.md).
@@ -108,6 +108,7 @@ workbooks; results checked in as data, not Excel files) and fixing what it finds
| Date | Change | Summary |
|---|---|---|
| 2026-10-15 | minor | INDEX with only a row index on a reference of several rows and columns (`INDEX(A1:C3,2)`, `INDEX(A1:C3,0)`) is `#REF!`, as observed in Excel, so it also fails as a range endpoint and inside other functions; an empty column argument (`INDEX(A1:C3,2,)`) still gives the row. Checked that a column array with one index stays a 1×1 array (`TYPE` 64), which is what Excel returns |
| 2026-10-12 | minor | USDOLLAR added as a Compatibility function (not on Microsoft's list, so the counts don't change); MIRR with no positive flow is -1, COUNTIF's bare `"<="` / `">="` skip empty strings, INDIRECT with `a1` = FALSE gives `#REF!` for A1-style text (#738) |
| 2026-10-11 | minor | TEXT / number formats fixed against Excel-cached results: fraction literals and zero fractions, `0` denominators zero padded, `?` pads the thousands separator, booleans use the text section (226 mismatches → 0 in 352 TEXT cells) |
| 2026-10-11 | minor | Iterative calculation: circular references iterate up to Maximum Iterations / Maximum Change when enabled |