Atom - ŒṬ - Multidimensional Ones at Indices
Arity: monadic
This atom is monadic, which means it takes one argument.
Functionality
Return a multidimensional rectangular boolean array with 1s at the multidimensional indices in the argument and 0s elsewhere.
Details
This is the right inverse of Multidimensional Indices of Truthy Values (ŒṪ).