By undefined in J

do you mean a variable to which no value has been assigned?

an attribute that is defined for some but not all?

is it associated with something like null which you can test for?

how does J handle the undefined?

Donna
[EMAIL PROTECTED]



On 20-Jun-06, at 9:51 PM, dly wrote:

For the beginner in J

can you point me to a help reference to the undefined in J ?

Re: Schroedinger's Qat--and I always thought he was talking about a cat--this puts things in entirely new purple haze.

Donna
[EMAIL PROTECTED]



On 20-Jun-06, at 9:30 PM, Roy A. Crabtree wrote:

which is why the undefined value in J is so important.

It corresponds roughly to the Aisan concept of yes, no, _mu_:

Schroedinger's Qat being neither dead nor alive until someone looks to see.



----------------------------------------------------------------------
For information about J forums see http://www.jsoftware.com/forums.htm

Reply via email to