feat:node-modules

node_modules/mathjs/lib/cjs/function/probability/factorial.js

@@ -0,0 +1,53 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.createFactorial = void 0;
+var _collection = require("../../utils/collection.js");
+var _factory = require("../../utils/factory.js");
+const name = 'factorial';
+const dependencies = ['typed', 'gamma'];
+const createFactorial = exports.createFactorial = /* #__PURE__ */(0, _factory.factory)(name, dependencies, _ref => {
+  let {
+    typed,
+    gamma
+  } = _ref;
+  /**
+   * Compute the factorial of a value
+   *
+   * Factorial only supports an integer value as argument.
+   * For matrices, the function is evaluated element wise.
+   *
+   * Syntax:
+   *
+   *    math.factorial(n)
+   *
+   * Examples:
+   *
+   *    math.factorial(5)    // returns 120
+   *    math.factorial(3)    // returns 6
+   *
+   * See also:
+   *
+   *    combinations, combinationsWithRep, gamma, permutations
+   *
+   * @param {number | BigNumber | Array | Matrix} n   An integer number
+   * @return {number | BigNumber | Array | Matrix}    The factorial of `n`
+   */
+  return typed(name, {
+    number: function (n) {
+      if (n < 0) {
+        throw new Error('Value must be non-negative');
+      }
+      return gamma(n + 1);
+    },
+    BigNumber: function (n) {
+      if (n.isNegative()) {
+        throw new Error('Value must be non-negative');
+      }
+      return gamma(n.plus(1));
+    },
+    'Array | Matrix': typed.referToSelf(self => n => (0, _collection.deepMap)(n, self))
+  });
+});