55 lines
1.4 KiB
JavaScript
55 lines
1.4 KiB
JavaScript
import { factory } from '../../utils/factory.js';
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import { deepMap } from '../../utils/collection.js';
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import { asecNumber } from '../../plain/number/index.js';
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var name = 'asec';
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var dependencies = ['typed', 'config', 'Complex', 'BigNumber'];
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export var createAsec = /* #__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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BigNumber: _BigNumber
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} = _ref;
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/**
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* Calculate the inverse secant of a value. Defined as `asec(x) = acos(1/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.asec(x)
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*
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* Examples:
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*
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* math.asec(0.5) // returns 1.0471975511965979
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* math.asec(math.sec(1.5)) // returns 1.5
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*
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* math.asec(2) // returns 0 + 1.3169578969248166 i
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*
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* See also:
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*
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* acos, acot, acsc
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*
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* @param {number | Complex | Array | Matrix} x Function input
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* @return {number | Complex | Array | Matrix} The arc secant 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 asecNumber(x);
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}
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return new Complex(x, 0).asec();
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},
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Complex: function Complex(x) {
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return x.asec();
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},
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BigNumber: function BigNumber(x) {
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return new _BigNumber(1).div(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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}); |