Which could also be written as

+:y is +~y
*:y is *~y
-:y is 2%~y


--- bill lam <[EMAIL PROTECTED]> wrote:

> in early J7 dictionary (1993), monad +: *: -: are defined as
> +:y is y+y
> *:y is y*y
> -:y is y%2
> 
> but later in J2 dictionary (1994) onwards, it uses english word like
> +: y is twice y
> *: y is the square of y
> -: y is one half of y
> 
> It seems original definition is more precise as it does not need to establish
> definition of twice`sqaure`half. What is the rationale for the change of 
> wording?
> 
> -- 
> regards,
> bill



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