1 | 'use strict'
|
2 |
|
3 | const deepForEach = require('../../utils/collection/deepForEach')
|
4 | const reduce = require('../../utils/collection/reduce')
|
5 | const containsCollections = require('../../utils/collection/containsCollections')
|
6 |
|
7 | function factory (type, config, load, typed) {
|
8 | const add = load(require('../arithmetic/addScalar'))
|
9 | const improveErrorMessage = load(require('./utils/improveErrorMessage'))
|
10 |
|
11 | |
12 |
|
13 |
|
14 |
|
15 |
|
16 |
|
17 |
|
18 |
|
19 |
|
20 |
|
21 |
|
22 |
|
23 |
|
24 |
|
25 |
|
26 |
|
27 |
|
28 |
|
29 |
|
30 |
|
31 |
|
32 |
|
33 |
|
34 | const sum = typed('sum', {
|
35 |
|
36 | 'Array | Matrix': _sum,
|
37 |
|
38 |
|
39 | 'Array | Matrix, number | BigNumber': _nsumDim,
|
40 |
|
41 |
|
42 | '...': function (args) {
|
43 | if (containsCollections(args)) {
|
44 | throw new TypeError('Scalar values expected in function sum')
|
45 | }
|
46 |
|
47 | return _sum(args)
|
48 | }
|
49 | })
|
50 |
|
51 | sum.toTex = undefined
|
52 |
|
53 | return sum
|
54 |
|
55 | |
56 |
|
57 |
|
58 |
|
59 |
|
60 |
|
61 | function _sum (array) {
|
62 | let sum
|
63 |
|
64 | deepForEach(array, function (value) {
|
65 | try {
|
66 | sum = (sum === undefined) ? value : add(sum, value)
|
67 | } catch (err) {
|
68 | throw improveErrorMessage(err, 'sum', value)
|
69 | }
|
70 | })
|
71 |
|
72 | if (sum === undefined) {
|
73 | switch (config.number) {
|
74 | case 'number':
|
75 | return 0
|
76 | case 'BigNumber':
|
77 | return new type.BigNumber(0)
|
78 | case 'Fraction':
|
79 | return new type.Fraction(0)
|
80 | default:
|
81 | return 0
|
82 | }
|
83 | }
|
84 |
|
85 | return sum
|
86 | }
|
87 | function _nsumDim (array, dim) {
|
88 | try {
|
89 | const sum = reduce(array, dim, add)
|
90 | return sum
|
91 | } catch (err) {
|
92 | throw improveErrorMessage(err, 'sum')
|
93 | }
|
94 | }
|
95 | }
|
96 |
|
97 | exports.name = 'sum'
|
98 | exports.factory = factory
|