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Options: Maximum Iterations and Maximum Change in File > Options > Formulas
The Formulas section had the calculation-mode radios and Enable iterative calculation but not the two limits that formulas.calculationOptions already takes. They now sit under the checkbox, disabled while iteration is off, and commit when the field loses focus. Like Excel, out-of-range entries (Maximum Iterations outside 1-32767, a negative or non-numeric Maximum Change) are refused with a message instead of being clamped by the command; the Enter that committed the field no longer also dismisses that message. Labels and messages are translated for every interface language. A kittest covers the disabled state, valid and invalid entries, and undo refreshing the field. Drops the stale "no Options dialog yet" from gaps.md and function-parity.md. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Harrison Booth
co-authored by
Claude Opus 5.5
Claude Opus 5.5
parent
e6b6b34970
commit
5bd6cc3d04
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# Function parity: worksheet functions and formulas
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> **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
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> **Last reviewed:** 2026-10-11 · **Last updated:** 2026-10-15 · **Change:** minor (iterative calculation settings in File › Options) · **Target:** Microsoft Excel (Microsoft 365), Excel for Mac 16.113.4
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Excel's worksheet functions, category by category, against GridCraft's function library. Part of
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[target-app-parity.md](target-app-parity.md); gaps feed [gaps.md](gaps.md).
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@@ -79,7 +79,7 @@ PIVOTBY, REGEXTEST…) are all present.
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| Implicit intersection `@`, legacy CSE array formulas | done; legacy array range fill (PR #156) |
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| Trim references `A1:.E10` (trailing), `A1.:E10` (leading), `A1.:.E10` (both), also on whole rows/columns (`A:.A`) | done; evaluated as `TRIMRANGE(range, code, code)`, adjusted on insert/delete; files store `_xlfn.TRIMRANGE(range,code,code)` (Excel's own file spelling unconfirmed in public docs), `_xlfn._TRO_ALL/_TRO_LEADING/_TRO_TRAILING(...)` read too |
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| LET, LAMBDA, named LAMBDAs, ISOMITTED, MAP/REDUCE/SCAN/BYROW/BYCOL/MAKEARRAY | done |
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| Iterative calculation for circular references | done: with Enable Iterative Calculation on (`formulas.calculationOptions` `{iterative, maxIterations, maxChange}`, saved as `<calcPr iterate iterateCount iterateDelta>`), loops are evaluated again from their previous values (blank = 0) until no cell on a loop changes by Maximum Change or Maximum Iterations is reached; off, cycles give `#CIRC!`. Differences: no Options dialog yet (command only); GridCraft recalculates on open, so a loop that never settles (`=A1+1`) advances again each time the file is opened |
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| Iterative calculation for circular references | done: with Enable Iterative Calculation on (`formulas.calculationOptions` `{iterative, maxIterations, maxChange}`, saved as `<calcPr iterate iterateCount iterateDelta>`), loops are evaluated again from their previous values (blank = 0) until no cell on a loop changes by Maximum Change or Maximum Iterations is reached; off, cycles give `#CIRC!`. Set in File › Options › Formulas (Enable iterative calculation, Maximum Iterations 1 to 32767, Maximum Change 0 or more; the two fields are disabled while iteration is off). Differences: GridCraft recalculates on open, so a loop that never settles (`=A1+1`) advances again each time the file is opened |
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| 15-significant-digit comparison semantics | **missing** (#57: `=0.1+0.2=0.3` is FALSE) |
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| External workbook references (`[Book.xlsx]Sheet1!A1`) | parsed; links dropped on open, no update |
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| Localized function names and `;` separators | **missing** (#45); en-US only |
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@@ -108,6 +108,7 @@ workbooks; results checked in as data, not Excel files) and fixing what it finds
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| Date | Change | Summary |
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|---|---|---|
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| 2026-10-15 | minor | Iterative calculation: Maximum Iterations and Maximum Change are set in File › Options › Formulas (dropped "no Options dialog yet") |
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| 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) |
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| 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) |
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| 2026-10-11 | minor | Iterative calculation: circular references iterate up to Maximum Iterations / Maximum Change when enabled |
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# Gaps
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> **Last reviewed:** 2026-10-11 · **Last updated:** 2026-10-12 · **Change:** minor (rows auto-fit oversized fonts on open and whole-row/column formatting) · **Target:** Microsoft Excel (Microsoft 365)
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> **Last reviewed:** 2026-10-11 · **Last updated:** 2026-10-15 · **Change:** minor (§6: Maximum Iterations and Maximum Change in File › Options) · **Target:** Microsoft Excel (Microsoft 365)
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Every known shortfall against Excel, one entry each, ranked by user impact (what blocks someone
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using GridCraft for real work first). This is the work list: pick from the top, check the open
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@@ -62,7 +62,8 @@ No alpha blockers: every core workflow passes the [alpha gate](roadmap.md#alpha-
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- **Missing:** 15-significant-digit equality; spill updates after structural edits and cleared
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blockers; 3-D span deletion; qualified names after sheet rename.
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- **Evidence:** #57, #133, #139, #140, #134; PRs #148, #155, #156, #157. Iterative calculation
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for circular references landed (no Options dialog yet).
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for circular references landed, set in File › Options › Formulas (Maximum Iterations, Maximum
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Change).
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- **Impact:** wrong numbers are worse than missing features.
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- **Estimate:** 10–15 h. [function-parity.md](function-parity.md#formula-language)
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@@ -168,6 +169,7 @@ No alpha blockers: every core workflow passes the [alpha gate](roadmap.md#alpha-
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| Date | Change | Summary |
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|---|---|---|
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| 2026-10-15 | minor | §6: Maximum Iterations and Maximum Change in File › Options › Formulas; dropped the stale "no Options dialog yet" |
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| 2026-10-12 | minor | rows auto-fit oversized fonts on open and whole-row/column formatting (#833) |
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| 2026-10-12 | minor | Page Layout view: dragging margins on the rulers (#792) removed from the §14 remainder |
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| 2026-10-12 | minor | §13: Forecast Sheet Forecast Start (hindcast) landed (#785) |
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@@ -1,6 +1,6 @@
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# UI parity
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> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-13 · **Change:** minor (horizontal scrollbar in the sheet tab bar, #840) · **Target:** Microsoft Excel (Microsoft 365), Excel for Mac 16.113.4
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> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-15 · **Change:** minor (File › Options › Formulas: Maximum Iterations and Maximum Change) · **Target:** Microsoft Excel (Microsoft 365), Excel for Mac 16.113.4
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Interaction, controls and feel, against Excel. Part of [target-app-parity.md](target-app-parity.md).
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**UI/UX fidelity: ~55% ready, 50–80 h** (estimated). Ribbon command coverage is measured
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@@ -26,7 +26,7 @@ Sources: `crates/ui-egui/src` (ribbon, grid, editor, formula bar, dialogs, panes
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| Task panes (Format Chart, Comments, Watch, Selection, PivotTable fields) | yes | yes | element-level Format pane for shapes and pictures missing |
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| Backstage (File) view: Info, New with templates, Open recent, Export, Options | yes | partial | Options dialog and template gallery missing |
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| Dark mode, system appearance | yes | yes | done (10-09); follows the system on first run, title-bar switch and File › Display theme (#194, #239) |
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| Backstage (File) view: Info, New with templates, Open recent, Export, Options | yes | yes (#174, 10-11): the File tab opens a full-window view (Esc or the back arrow return) with Home, New (blank + the three samples), Open (recent + Browse; the recent list tells when each workbook was last changed, 10-12), Info (location, properties, Protect Workbook), Save, Save As, Print (page preview, active sheet or workbook, fit to page, Page Setup), Export (PDF, CSV, web page), Close and Options (`file.options`: theme, language, formula bar, AutoSave, calculation) | no Account, Share or template gallery beyond the samples; Options applies at once (no OK/Cancel dialog) and holds only the settings GridCraft has |
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| Backstage (File) view: Info, New with templates, Open recent, Export, Options | yes | yes (#174, 10-11): the File tab opens a full-window view (Esc or the back arrow return) with Home, New (blank + the three samples), Open (recent + Browse; the recent list tells when each workbook was last changed, 10-12), Info (location, properties, Protect Workbook), Save, Save As, Print (page preview, active sheet or workbook, fit to page, Page Setup), Export (PDF, CSV, web page), Close and Options (`file.options`: theme, language, formula bar, AutoSave, calculation mode and iterative calculation with Maximum Iterations and Maximum Change, 10-15) | no Account, Share or template gallery beyond the samples; Options applies at once (no OK/Cancel dialog) and holds only the settings GridCraft has |
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| Dark mode, system appearance | yes | yes | done (10-09) |
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| Page Layout view (paper view with rulers and header editing) | yes | yes (#329, 10-11): per-sheet view saved in XLSX, pages with margins and gaps on the print pagination, "Click to add data" pages, rulers (inches or centimetres), headers and footers drawn and edited in place with a Header & Footer tab | margins drag on the rulers (#792, with header and footer margins); header/footer pictures, Different First Page / Odd & Even missing (1–3 h) |
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| Multiple windows per workbook | yes | no (#162) | see [hardware-parity.md](hardware-parity.md) |
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@@ -161,6 +161,7 @@ scrollbar bugs 2–4 · pixel/feel pass against observed Excel 7–12.
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| Date | Change | Summary |
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| 2026-10-15 | minor | File › Options › Formulas: Maximum Iterations (1 to 32767) and Maximum Change (0 or more) under Enable iterative calculation, disabled while it is off; invalid entries are refused with a message |
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| 2026-10-12 | minor | The File view's recent list tells when each workbook was last changed, read off the UI thread |
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| 2026-10-13 | minor | Horizontal scrollbar in the sheet tab bar: drag, track click pages, frozen columns excluded from the page (#840) |
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| 2026-10-12 | minor | Ctrl+wheel zoom steps along a ladder of percentages about 20% apart that never skips 100%, gliding to each step with animations on, so a notch out undoes a notch in (it drifted: 100 → 122 → 101); Excel steps 15 points, see decisions.md |
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