"smooth" argument in matrix~

suhsw1210's icon

What is the meaning of the argument "smooth" on matrix~?
I found it from Pulkki's VBAP help file, but cannot find any clue on matrix~ help.

metamax's icon

"The parameters are the number of inputs, the number of outputs, type of cross fading and the length
of cross fade as amount of samples. The type can be smooth (linear cross fading) or fast (no cross fading)."

from by Ville Pulkki's "Generic panning tools for MAX MSP" (pg. 3)