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Python

Posted by NARCIS MATABOSCH
NARCIS MATABOSCH
1,540 Points

Clarify set order in intersection

At the end of the video, it is said that with union and symmetric difference, the order of sets doesn't matter, but with the rest it does.

I understand why in the difference method, but not in the intersection method. Why does order matter in intersection?

Tyvm!

Alexander Davison
Alexander Davison
65,469 Points

Tagging Chris Freeman & Kenneth Love

1 Answer

Jason Anello
Jason Anello
Courses Plus Student 94,610 Points

Hi Narcis,

I don't think order would matter on intersection.

Union, Intersection and the Symmetric Difference operations are commutative and the order would not matter.

For the difference operation the order would matter. set1 - set2 is not the same as set2 - set1

NARCIS MATABOSCH
NARCIS MATABOSCH
1,540 Points

Hi Jason!

That's what I thought... i just wanted to be sure =)