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In this article
MAKEARRAY builds an array of a given size, computing each cell from its row and column number.
Syntax
=MAKEARRAY(rows, cols, LAMBDA(r, c, calculation))| Argument | What it means |
|---|---|
LAMBDA(r, c, …) |
Receives the row and column number. |
Examples
Example 1
=MAKEARRAY(10, 10, LAMBDA(r, c, r*c))A 10×10 multiplication table.
MAKEARRAY in practice
Where you will use it
- Build multiplication or calendar grids
- Generate test matrices
- Custom tables without helper cells
Worked example
| Size | Formula | Result |
|---|---|---|
| 2 | =ARRAYTOTEXT(MAKEARRAY(A2,A2,LAMBDA(r,c,r*c))) | 1, 2, 2, 4 |
| 3 | =ARRAYTOTEXT(MAKEARRAY(A3,A3,LAMBDA(r,c,r*c))) | 1, 2, 3, 2, 4, 6, 3, 6, 9 |
| 1 | =ARRAYTOTEXT(MAKEARRAY(A4,A4,LAMBDA(r,c,r*c))) | 1 |
Results calculated in Excel.
Mistakes people make
| Mistake | What to do instead |
|---|---|
| LAMBDA arguments | Must take exactly row and column |
| Large sizes | Keep arrays reasonable for speed |
Related functions
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📎 Practice files for this article
- 📗Practice workbook: Logic, LET & LAMBDA17 tasks on realistic sales data — type your formula, the Check column turns green when it is right. Answers sheet included.⬇ XLSX · 35 KB
Free to use for learning. Files with macros (.bas) are plain text — import them with Alt+F11 → File → Import File, and always test on a copy.
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