Mathlean · Online math workspace
Set intersection calculator
Find the elements shared by finite sets.
How to use this calculator
Edit the two sets around the intersection symbol. Only 2 is shared in the example.
Tap the math below to edit it and see the result. Once a result is ready, press Tab on a hardware keyboard to accept it. Outside a matrix, Return completes the line; the phone math keyboard has the same Return action.
Try it here
Interactive tools require JavaScript. You can read the guide and example without it.
What to know
An empty intersection is a valid empty set, not a computation failure.
Mathlean combines visual mathematical input with computation and canvas tools. Results depend on the expression and available engine support; check important answers independently.