1 03/06/80  apl_erf_ external function
 2 
 3 Function: a scalar, monadic function that accepts any numeric argument, and
 4 applies the "error function" to each value.
 5 
 6 
 7 Usage:
 8    )MFN ERF APL_ERF_
 9    RESULT -^H< ERF VALUE
10 
11 
12 Arguments:
13 VALUE
14    is a numeric value of any shape.
15 
16 RESULT
17    is the result value. It has the same shape as the argument.