53 lines
1.3 KiB
JavaScript
53 lines
1.3 KiB
JavaScript
import { factory } from '../../utils/factory.js';
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import { deepMap } from '../../utils/collection.js';
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var name = 'acos';
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var dependencies = ['typed', 'config', 'Complex'];
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export var createAcos = /* #__PURE__ */factory(name, dependencies, _ref => {
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var {
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typed,
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config,
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Complex
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} = _ref;
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/**
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* Calculate the inverse cosine of a value.
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*
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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.acos(x)
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*
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* Examples:
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*
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* math.acos(0.5) // returns number 1.0471975511965979
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* math.acos(math.cos(1.5)) // returns number 1.5
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*
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* math.acos(2) // returns Complex 0 + 1.3169578969248166 i
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*
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* See also:
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*
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* cos, atan, asin
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*
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* @param {number | BigNumber | Complex | Array | Matrix} x Function input
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* @return {number | BigNumber | Complex | Array | Matrix} The arc cosine of x
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*/
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return typed(name, {
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number: function number(x) {
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if (x >= -1 && x <= 1 || config.predictable) {
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return Math.acos(x);
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} else {
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return new Complex(x, 0).acos();
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}
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},
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Complex: function Complex(x) {
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return x.acos();
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},
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BigNumber: function BigNumber(x) {
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return x.acos();
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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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}); |