LAMBDA
creates a custom reusable function · from excel · excel: verified match · sheets: verified match
signature
LAMBDA(parameter_or_calculation…)
returns: any
| argument | required |
|---|---|
| parameter_or_calculation… | required |
examples
formula and result, taken from the engine's own test suite — every result below is asserted in CI, not written by hand.
fx
=LAMBDA(x, y, x + y)(2, 3) 5 errors
error values observed from the engine — each with a call that produces it.
| error | produced by |
|---|---|
| #VALUE! | =MAKEARRAY(3, 0, LAMBDA(x, y, y)) |
| #ERROR! | =SCAN(0, A2:A3, LAMBDA(a, b, a+b), 1) |
related
- ARRAY_CONSTRAIN truncates a range to at most the given rows and columns
- ARRAYFORMULA evaluates an expression across a range (this engine already spills, so it is a pass-through for sheets compatibility)
- ARRAYTOTEXT converts array to text representation
- BYCOL applies lambda to each column of array
- BYROW applies lambda to each row of array
- CHOOSECOLS returns the specified columns from an array