53 lines
1.5 KiB
JavaScript
53 lines
1.5 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 = 'tan';
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var dependencies = ['typed'];
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export var createTan = /* #__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 tangent of a value. `tan(x)` is equal to `sin(x) / cos(x)`.
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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.tan(x)
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*
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* Examples:
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*
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* math.tan(0.5) // returns number 0.5463024898437905
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* math.sin(0.5) / math.cos(0.5) // returns number 0.5463024898437905
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* math.tan(math.pi / 4) // returns number 1
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* math.tan(math.unit(45, 'deg')) // returns number 1
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*
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* See also:
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*
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* atan, sin, cos
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*
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* @param {number | BigNumber | Complex | Unit | Array | Matrix} x Function input
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* @return {number | BigNumber | Complex | Array | Matrix} Tangent of x
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*/
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return typed(name, {
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number: Math.tan,
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Complex: function Complex(x) {
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return x.tan();
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},
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BigNumber: function BigNumber(x) {
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return x.tan();
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},
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Unit: function Unit(x) {
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if (!x.hasBase(x.constructor.BASE_UNITS.ANGLE)) {
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throw new TypeError('Unit in function tan is no angle');
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}
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return this(x.value);
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},
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'Array | Matrix': function ArrayMatrix(x) {
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// deep map collection, skip zeros since tan(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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