feat:node-modules

node_modules/mathjs/lib/cjs/function/trigonometry/cos.js

@@ -0,0 +1,50 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.createCos = void 0;
+var _factory = require("../../utils/factory.js");
+var _trigUnit = require("./trigUnit.js");
+const name = 'cos';
+const dependencies = ['typed'];
+const createCos = exports.createCos = /* #__PURE__ */(0, _factory.factory)(name, dependencies, _ref => {
+  let {
+    typed
+  } = _ref;
+  const trigUnit = (0, _trigUnit.createTrigUnit)({
+    typed
+  });
+
+  /**
+   * Calculate the cosine of a value.
+   *
+   * To avoid confusion with the matrix cosine, this function does not
+   * apply to matrices.
+   *
+   * Syntax:
+   *
+   *    math.cos(x)
+   *
+   * Examples:
+   *
+   *    math.cos(2)                      // returns number -0.4161468365471422
+   *    math.cos(math.pi / 4)            // returns number  0.7071067811865475
+   *    math.cos(math.unit(180, 'deg'))  // returns number -1
+   *    math.cos(math.unit(60, 'deg'))   // returns number  0.5
+   *
+   *    const angle = 0.2
+   *    math.pow(math.sin(angle), 2) + math.pow(math.cos(angle), 2) // returns number ~1
+   *
+   * See also:
+   *
+   *    cos, tan
+   *
+   * @param {number | BigNumber | Complex | Unit} x  Function input
+   * @return {number | BigNumber | Complex} Cosine of x
+   */
+  return typed(name, {
+    number: Math.cos,
+    'Complex | BigNumber': x => x.cos()
+  }, trigUnit);
+});