Google Sheets

MUNIT function in Google Sheets

Returns a unit matrix of size dimension x dimension. .

=MUNIT(dimension)

MUNIT syntax and parameters

One argument, one required.

dimensionnumberRequired

MUNIT examples

Formulas you'll actually reuse.

A 3×3 identity matrix — ones on the diagonal, zeros elsewhere:
```
=MUNIT(3)
```
Multiplying by the identity returns the matrix unchanged — a sanity check:
```
=MMULT(B2:D4, MUNIT(3))
```

MUNIT in Excel

Same name — your formula ports as-is.

Try MUNIT in the playground

Edit the example — nothing to install.

Preloaded with the MUNIT formula from Example 1 — change anything and watch it respond.

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Related functions

More ways Google Sheets gets this done.