The term “eta lambda” is short for “eta reduced lambda”.
Although the name sounds complicated, the intent is actually the reverse.
In Excel, eta reduction is related to simplifying functions defined by LAMBA.
The idea is to allow Excel to use an abbreviated syntax when possible.
Let’s look at a specific example.
This works fine, but the syntax is somewhat verbose for such a simple operation.
it’s possible for you to use the same syntax to call other functions like this:
