54 lines
1.4 KiB
JavaScript
54 lines
1.4 KiB
JavaScript
import { factory } from '../../utils/factory.js';
|
|
import { deepMap } from '../../utils/collection.js';
|
|
import { sechNumber } from '../../plain/number/index.js';
|
|
var name = 'sech';
|
|
var dependencies = ['typed', 'BigNumber'];
|
|
export var createSech = /* #__PURE__ */factory(name, dependencies, _ref => {
|
|
var {
|
|
typed,
|
|
BigNumber: _BigNumber
|
|
} = _ref;
|
|
|
|
/**
|
|
* Calculate the hyperbolic secant of a value,
|
|
* defined as `sech(x) = 1 / cosh(x)`.
|
|
*
|
|
* For matrices, the function is evaluated element wise.
|
|
*
|
|
* Syntax:
|
|
*
|
|
* math.sech(x)
|
|
*
|
|
* Examples:
|
|
*
|
|
* // sech(x) = 1/ cosh(x)
|
|
* math.sech(0.5) // returns 0.886818883970074
|
|
* 1 / math.cosh(0.5) // returns 0.886818883970074
|
|
*
|
|
* See also:
|
|
*
|
|
* cosh, csch, coth
|
|
*
|
|
* @param {number | Complex | Unit | Array | Matrix} x Function input
|
|
* @return {number | Complex | Array | Matrix} Hyperbolic secant of x
|
|
*/
|
|
return typed(name, {
|
|
number: sechNumber,
|
|
Complex: function Complex(x) {
|
|
return x.sech();
|
|
},
|
|
BigNumber: function BigNumber(x) {
|
|
return new _BigNumber(1).div(x.cosh());
|
|
},
|
|
Unit: function Unit(x) {
|
|
if (!x.hasBase(x.constructor.BASE_UNITS.ANGLE)) {
|
|
throw new TypeError('Unit in function sech is no angle');
|
|
}
|
|
|
|
return this(x.value);
|
|
},
|
|
'Array | Matrix': function ArrayMatrix(x) {
|
|
return deepMap(x, this);
|
|
}
|
|
});
|
|
}); |