feat:node-modules

node_modules/mathjs/lib/cjs/function/arithmetic/expm1.js

@@ -0,0 +1,59 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.createExpm1 = void 0;
+var _factory = require("../../utils/factory.js");
+var _index = require("../../plain/number/index.js");
+const name = 'expm1';
+const dependencies = ['typed', 'Complex'];
+const createExpm1 = exports.createExpm1 = /* #__PURE__ */(0, _factory.factory)(name, dependencies, _ref => {
+  let {
+    typed,
+    Complex
+  } = _ref;
+  /**
+   * Calculate the value of subtracting 1 from the exponential value.
+   * This function is more accurate than `math.exp(x)-1` when `x` is near 0
+   * To avoid ambiguity with the matrix exponential `expm`, this function
+   * does not operate on matrices; if you wish to apply it elementwise, see
+   * the examples.
+   *
+   * Syntax:
+   *
+   *    math.expm1(x)
+   *
+   * Examples:
+   *
+   *    math.expm1(2)                      // returns number 6.38905609893065
+   *    math.pow(math.e, 2) - 1            // returns number 6.3890560989306495
+   *    math.expm1(1e-8)                   // returns number 1.0000000050000001e-8
+   *    math.exp(1e-8) - 1                 // returns number 9.9999999392253e-9
+   *    math.log(math.expm1(2) + 1)        // returns number 2
+   *
+   *    math.map([1, 2, 3], math.expm1)
+   *    // returns Array [
+   *    //   1.718281828459045,
+   *    //   6.3890560989306495,
+   *    //   19.085536923187668
+   *    // ]
+   *
+   * See also:
+   *
+   *    exp, expm, log, pow
+   *
+   * @param {number | BigNumber | Complex} x  The number to exponentiate
+   * @return {number | BigNumber | Complex} Exponential of `x`, minus one
+   */
+  return typed(name, {
+    number: _index.expm1Number,
+    Complex: function (x) {
+      const r = Math.exp(x.re);
+      return new Complex(r * Math.cos(x.im) - 1, r * Math.sin(x.im));
+    },
+    BigNumber: function (x) {
+      return x.exp().minus(1);
+    }
+  });
+});