simple-squiggle

A restricted subset of Squiggle
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acosh.js (1397B)

      1 import { factory } from '../../utils/factory.js';
      2 import { deepMap } from '../../utils/collection.js';
      3 import { acoshNumber } from '../../plain/number/index.js';
      4 var name = 'acosh';
      5 var dependencies = ['typed', 'config', 'Complex'];
      6 export var createAcosh = /* #__PURE__ */factory(name, dependencies, _ref => {
      7   var {
      8     typed,
      9     config,
     10     Complex
     11   } = _ref;
     12 
     13   /**
     14    * Calculate the hyperbolic arccos of a value,
     15    * defined as `acosh(x) = ln(sqrt(x^2 - 1) + x)`.
     16    *
     17    * For matrices, the function is evaluated element wise.
     18    *
     19    * Syntax:
     20    *
     21    *    math.acosh(x)
     22    *
     23    * Examples:
     24    *
     25    *    math.acosh(1.5)       // returns 0.9624236501192069
     26    *
     27    * See also:
     28    *
     29    *    cosh, asinh, atanh
     30    *
     31    * @param {number | Complex | Unit | Array | Matrix} x  Function input
     32    * @return {number | Complex | Array | Matrix} Hyperbolic arccosine of x
     33    */
     34   return typed(name, {
     35     number: function number(x) {
     36       if (x >= 1 || config.predictable) {
     37         return acoshNumber(x);
     38       }
     39 
     40       if (x <= -1) {
     41         return new Complex(Math.log(Math.sqrt(x * x - 1) - x), Math.PI);
     42       }
     43 
     44       return new Complex(x, 0).acosh();
     45     },
     46     Complex: function Complex(x) {
     47       return x.acosh();
     48     },
     49     BigNumber: function BigNumber(x) {
     50       return x.acosh();
     51     },
     52     'Array | Matrix': function ArrayMatrix(x) {
     53       return deepMap(x, this);
     54     }
     55   });
     56 });