feat:node-modules

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

@@ -0,0 +1,47 @@
+import { deepMap } from '../../utils/collection.js';
+import { factory } from '../../utils/factory.js';
+var name = 'factorial';
+var dependencies = ['typed', 'gamma'];
+export var createFactorial = /* #__PURE__ */factory(name, dependencies, _ref => {
+  var {
+    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 number(n) {
+      if (n < 0) {
+        throw new Error('Value must be non-negative');
+      }
+      return gamma(n + 1);
+    },
+    BigNumber: function BigNumber(n) {
+      if (n.isNegative()) {
+        throw new Error('Value must be non-negative');
+      }
+      return gamma(n.plus(1));
+    },
+    'Array | Matrix': typed.referToSelf(self => n => deepMap(n, self))
+  });
+});