51 lines
1.3 KiB
JavaScript
51 lines
1.3 KiB
JavaScript
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import { deepMap } from '../../utils/collection.js';
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import { factory } from '../../utils/factory.js';
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import { notNumber } from '../../plain/number/index.js';
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var name = 'not';
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var dependencies = ['typed'];
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export var createNot = /* #__PURE__ */factory(name, dependencies, _ref => {
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var {
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typed
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} = _ref;
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/**
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* Logical `not`. Flips boolean value of a given parameter.
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* For matrices, the function is evaluated element wise.
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*
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* Syntax:
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*
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* math.not(x)
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*
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* Examples:
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*
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* math.not(2) // returns false
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* math.not(0) // returns true
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* math.not(true) // returns false
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*
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* a = [2, -7, 0]
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* math.not(a) // returns [false, false, true]
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*
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* See also:
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*
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* and, or, xor
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*
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* @param {number | BigNumber | Complex | Unit | Array | Matrix} x First value to check
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* @return {boolean | Array | Matrix}
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* Returns true when input is a zero or empty value.
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*/
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return typed(name, {
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number: notNumber,
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Complex: function Complex(x) {
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return x.re === 0 && x.im === 0;
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},
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BigNumber: function BigNumber(x) {
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return x.isZero() || x.isNaN();
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},
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Unit: function Unit(x) {
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return x.value !== null ? this(x.value) : true;
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},
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'Array | Matrix': function ArrayMatrix(x) {
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return deepMap(x, this);
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}
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});
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});
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