Use the function reference in a custom name
You can define a custom name with the content as the function name. Then you can use it in a formula.
Use the function reference as the LAMBDA functions parameter
You can use the function name as the LAMBDA functions parameter where lambda functions are accepted.
Use the function reference in the LET name_value
You can define the name_value as a function reference, and then use it in the LET function
Reference the custom function
You can define the custom functions and use them for the above use cases.
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