39 lines
1.0 KiB
JavaScript
39 lines
1.0 KiB
JavaScript
import { factory } from '../../utils/factory.js';
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import { sechNumber } from '../../plain/number/index.js';
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var name = 'sech';
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var dependencies = ['typed', 'BigNumber'];
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export var createSech = /* #__PURE__ */factory(name, dependencies, _ref => {
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var {
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typed,
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BigNumber: _BigNumber
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} = _ref;
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/**
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* Calculate the hyperbolic secant of a value,
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* defined as `sech(x) = 1 / cosh(x)`.
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*
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* To avoid confusion with the matrix hyperbolic secant, this function does
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* not apply to matrices.
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*
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* Syntax:
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*
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* math.sech(x)
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*
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* Examples:
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*
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* // sech(x) = 1/ cosh(x)
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* math.sech(0.5) // returns 0.886818883970074
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* 1 / math.cosh(0.5) // returns 0.886818883970074
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*
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* See also:
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*
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* cosh, csch, coth
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*
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* @param {number | BigNumber | Complex} x Function input
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* @return {number | BigNumber | Complex} Hyperbolic secant of x
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*/
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return typed(name, {
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number: sechNumber,
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Complex: x => x.sech(),
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BigNumber: x => new _BigNumber(1).div(x.cosh())
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});
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}); |