42 lines
1.1 KiB
JavaScript
42 lines
1.1 KiB
JavaScript
import { factory } from '../../utils/factory.js';
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import { secNumber } from '../../plain/number/index.js';
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import { createTrigUnit } from './trigUnit.js';
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var name = 'sec';
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var dependencies = ['typed', 'BigNumber'];
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export var createSec = /* #__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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var trigUnit = createTrigUnit({
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typed
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});
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/**
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* Calculate the secant of a value, defined as `sec(x) = 1/cos(x)`.
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*
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* To avoid confusion with the matrix secant, this function does not
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* apply to matrices.
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*
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* Syntax:
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*
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* math.sec(x)
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*
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* Examples:
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*
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* math.sec(2) // returns number -2.4029979617223822
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* 1 / math.cos(2) // returns number -2.4029979617223822
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*
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* See also:
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*
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* cos, csc, cot
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*
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* @param {number | BigNumber | Complex | Unit} x Function input
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* @return {number | BigNumber | Complex} Secant of x
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*/
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return typed(name, {
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number: secNumber,
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Complex: x => x.sec(),
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BigNumber: x => new _BigNumber(1).div(x.cos())
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}, trigUnit);
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}); |