Some of these resemble similar functions in the Arrays
class,
and in some cases are interchangeable, but these are easier to use
on non-array values because you don't have to explicitly wrap up
lists of arguments as an array.
However, for implementation reasons, most of the functions defined here
can be used on values which are already double[]
arrays
(for instance array-valued columns) rather than as comma-separated
lists of floating point values.