48 lines
1.2 KiB
JavaScript
48 lines
1.2 KiB
JavaScript
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import { factory } from '../../utils/factory.js';
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import { deepMap } from '../../utils/collection.js';
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var name = 'atan';
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var dependencies = ['typed'];
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export var createAtan = /* #__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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* Calculate the inverse tangent 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.atan(x)
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*
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* Examples:
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*
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* math.atan(0.5) // returns number 0.4636476090008061
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* math.atan(math.tan(1.5)) // returns number 1.5
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*
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* math.atan(2) // returns Complex 1.5707963267948966 -1.3169578969248166 i
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*
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* See also:
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*
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* tan, asin, acos
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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 tangent of x
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*/
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return typed('atan', {
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number: function number(x) {
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return Math.atan(x);
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},
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Complex: function Complex(x) {
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return x.atan();
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},
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BigNumber: function BigNumber(x) {
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return x.atan();
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},
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'Array | Matrix': function ArrayMatrix(x) {
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// deep map collection, skip zeros since atan(0) = 0
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return deepMap(x, this, true);
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}
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});
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});
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