Nodebundle for playing with nodes

 From:  speedy (AL2000)
7777.138 
Can someone explain to me this strange behavior
I get , by inserting Interpolated on the Math Node Point? ;
the same interpolated placed on simple Node Point
it is OK......
where am I wrong?
I do not understand
best
al

Image Attachments:
Size: 303 KB, Downloaded: 69 times, Dimensions: 1920x1080px