simple-squiggle

A restricted subset of Squiggle
Log | Files | Refs | README

acos.js (1354B)

      1 import { factory } from '../../utils/factory.js';
      2 import { deepMap } from '../../utils/collection.js';
      3 var name = 'acos';
      4 var dependencies = ['typed', 'config', 'Complex'];
      5 export var createAcos = /* #__PURE__ */factory(name, dependencies, _ref => {
      6   var {
      7     typed,
      8     config,
      9     Complex
     10   } = _ref;
     11 
     12   /**
     13    * Calculate the inverse cosine of a value.
     14    *
     15    * For matrices, the function is evaluated element wise.
     16    *
     17    * Syntax:
     18    *
     19    *    math.acos(x)
     20    *
     21    * Examples:
     22    *
     23    *    math.acos(0.5)           // returns number 1.0471975511965979
     24    *    math.acos(math.cos(1.5)) // returns number 1.5
     25    *
     26    *    math.acos(2)             // returns Complex 0 + 1.3169578969248166 i
     27    *
     28    * See also:
     29    *
     30    *    cos, atan, asin
     31    *
     32    * @param {number | BigNumber | Complex | Array | Matrix} x  Function input
     33    * @return {number | BigNumber | Complex | Array | Matrix} The arc cosine of x
     34    */
     35   return typed(name, {
     36     number: function number(x) {
     37       if (x >= -1 && x <= 1 || config.predictable) {
     38         return Math.acos(x);
     39       } else {
     40         return new Complex(x, 0).acos();
     41       }
     42     },
     43     Complex: function Complex(x) {
     44       return x.acos();
     45     },
     46     BigNumber: function BigNumber(x) {
     47       return x.acos();
     48     },
     49     'Array | Matrix': function ArrayMatrix(x) {
     50       return deepMap(x, this);
     51     }
     52   });
     53 });