[Matrix-SIG] NaN

[Yoon, Hoon (CICG - NY Program Trading)]

Hello,

  I get NaN's inside my array. And I would like to elimiate them using equal
or something like that, but I cannot
figure out how to mark them.

  I tried:
equal(array, NaN)
equal(array, sqrt(-1))

  Thank you,

Hoon,