50 lines
1.5 KiB
JavaScript
50 lines
1.5 KiB
JavaScript
|
import { flatten } from '../../utils/array.js';
|
||
|
|
import { factory } from '../../utils/factory.js';
|
||
|
|
var name = 'setSymDifference';
|
||
|
|
var dependencies = ['typed', 'size', 'concat', 'subset', 'setDifference', 'Index'];
|
||
|
|
export var createSetSymDifference = /* #__PURE__ */factory(name, dependencies, _ref => {
|
||
|
|
var {
|
||
|
|
typed,
|
||
|
|
size,
|
||
|
|
concat,
|
||
|
|
subset,
|
||
|
|
setDifference,
|
||
|
|
Index
|
||
|
|
} = _ref;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Create the symmetric difference of two (multi)sets.
|
||
|
|
* Multi-dimension arrays will be converted to single-dimension arrays before the operation.
|
||
|
|
*
|
||
|
|
* Syntax:
|
||
|
|
*
|
||
|
|
* math.setSymDifference(set1, set2)
|
||
|
|
*
|
||
|
|
* Examples:
|
||
|
|
*
|
||
|
|
* math.setSymDifference([1, 2, 3, 4], [3, 4, 5, 6]) // returns [1, 2, 5, 6]
|
||
|
|
* math.setSymDifference([[1, 2], [3, 4]], [[3, 4], [5, 6]]) // returns [1, 2, 5, 6]
|
||
|
|
*
|
||
|
|
* See also:
|
||
|
|
*
|
||
|
|
* setUnion, setIntersect, setDifference
|
||
|
|
*
|
||
|
|
* @param {Array | Matrix} a1 A (multi)set
|
||
|
|
* @param {Array | Matrix} a2 A (multi)set
|
||
|
|
* @return {Array | Matrix} The symmetric difference of two (multi)sets
|
||
|
|
*/
|
||
|
|
return typed(name, {
|
||
|
|
'Array | Matrix, Array | Matrix': function ArrayMatrixArrayMatrix(a1, a2) {
|
||
|
|
if (subset(size(a1), new Index(0)) === 0) {
|
||
|
|
// if any of them is empty, return the other one
|
||
|
|
return flatten(a2);
|
||
|
|
} else if (subset(size(a2), new Index(0)) === 0) {
|
||
|
|
return flatten(a1);
|
||
|
|
}
|
||
|
|
|
||
|
|
var b1 = flatten(a1);
|
||
|
|
var b2 = flatten(a2);
|
||
|
|
return concat(setDifference(b1, b2), setDifference(b2, b1));
|
||
|
|
}
|
||
|
|
});
|
||
|
|
});
|