1 | 'use strict';
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3 | function factory(type, config, load, typed) {
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4 | var add = load(require('../arithmetic/add'));
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5 | var stirlingS2 = load(require('./stirlingS2'));
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6 | var isNegative = load(require('../utils/isNegative'));
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7 | var isInteger = load(require('../utils/isInteger'));
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30 | var bellNumbers = typed('bellNumbers', {
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31 | 'number | BigNumber': function numberBigNumber(n) {
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32 | if (!isInteger(n) || isNegative(n)) {
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33 | throw new TypeError('Non-negative integer value expected in function bellNumbers');
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34 | }
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35 |
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36 |
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37 | var result = 0;
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38 | for (var i = 0; i <= n; i++) {
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39 | result = add(result, stirlingS2(n, i));
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40 | }
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41 |
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42 | return result;
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43 | }
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44 | });
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45 |
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46 | bellNumbers.toTex = { 1: '\\mathrm{B}_{${args[0]}}' };
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47 |
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48 | return bellNumbers;
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49 | }
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50 |
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51 | exports.name = 'bellNumbers';
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52 | exports.factory = factory; |
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