1 | import { flatten } from '../../utils/array.js';
|
2 | import { factory } from '../../utils/factory.js';
|
3 | var name = 'setSymDifference';
|
4 | var dependencies = ['typed', 'size', 'concat', 'subset', 'setDifference', 'Index'];
|
5 | export var createSetSymDifference = /* #__PURE__ */factory(name, dependencies, (_ref) => {
|
6 | var {
|
7 | typed,
|
8 | size,
|
9 | concat,
|
10 | subset,
|
11 | setDifference,
|
12 | Index
|
13 | } = _ref;
|
14 |
|
15 | /**
|
16 | * Create the symmetric difference of two (multi)sets.
|
17 | * Multi-dimension arrays will be converted to single-dimension arrays before the operation.
|
18 | *
|
19 | * Syntax:
|
20 | *
|
21 | * math.setSymDifference(set1, set2)
|
22 | *
|
23 | * Examples:
|
24 | *
|
25 | * math.setSymDifference([1, 2, 3, 4], [3, 4, 5, 6]) // returns [1, 2, 5, 6]
|
26 | * math.setSymDifference([[1, 2], [3, 4]], [[3, 4], [5, 6]]) // returns [1, 2, 5, 6]
|
27 | *
|
28 | * See also:
|
29 | *
|
30 | * setUnion, setIntersect, setDifference
|
31 | *
|
32 | * @param {Array | Matrix} a1 A (multi)set
|
33 | * @param {Array | Matrix} a2 A (multi)set
|
34 | * @return {Array | Matrix} The symmetric difference of two (multi)sets
|
35 | */
|
36 | return typed(name, {
|
37 | 'Array | Matrix, Array | Matrix': function ArrayMatrixArrayMatrix(a1, a2) {
|
38 | if (subset(size(a1), new Index(0)) === 0) {
|
39 | // if any of them is empty, return the other one
|
40 | return flatten(a2);
|
41 | } else if (subset(size(a2), new Index(0)) === 0) {
|
42 | return flatten(a1);
|
43 | }
|
44 |
|
45 | var b1 = flatten(a1);
|
46 | var b2 = flatten(a2);
|
47 | return concat(setDifference(b1, b2), setDifference(b2, b1));
|
48 | }
|
49 | });
|
50 | }); |
\ | No newline at end of file |