On 13 August 2016 at 13:05, Juergen Sauermann <[email protected]
> wrote:
> In "Mastering Dyalog APL" I haven't found the monadic case for the right
> function argument
> G of the power operator. In that book G seems to be always dyadic. So the
> monadic case looks
> like a new Dyalog invention. And, if it is defined like you say, IMHO not
> the ultimate wisdom.
>
There is no "monadic case". G is always applied dyadically, and if it
happens to be a strictly monadic function then you'll get a SYNTAX ERROR:
⎕FX'r←g y' 'r←g>10' ⍝ g is strictly monadic
2 g 4 ⍝ applying it dyadically gives an error
SYNTAX ERROR
(+⍨⍣g)1 ⍝ power operator tries to apply g dyadically
SYNTAX ERROR
In general, Dyalog APL *never* examines a function operand to see whether
it is monadic or dyadic, in order to treat them differently.
Jay.
