1

2

3

4

5

6

7

$A=\{1,2,3,5,7\}$

$B=\{2,4,6,7\}$

$A\cap B=\{2,7\}$

$A\cup B=\{1,2,3,4,5,6,7\}$

B

A

和集合

集合B

集合A

共通部分

A = (0.02, 2.26)
B = (3.1, 2.22)
c = Circle(B, A)
C = (-0.12, 2.34)
D = (2.88, 2.26)
d = Circle(C, D)
n = 1 (slider from 1 to 4, step 1)