Travis build: 1671

README.md

@@ -258,6 +258,7 @@ average(1, 2, 3);
 <details>
 <summary>View contents</summary>
 
+* [`approximatelyEqual`](#approximatelyequal)
 * [`average`](#average)
 * [`averageBy`](#averageby)
 * [`binomialCoefficient`](#binomialcoefficient)
@@ -4314,6 +4315,29 @@ unfold(f, 10); // [-10, -20, -30, -40, -50]
 ---
  ## ➗ Math
 
+### approximatelyEqual
+
+Checks if two numbers are approximately equal to each other.
+
+Use `Math.abs()` to compare the absolute difference of the two values to `epsilon`.
+Omit the third parameter, `epsilon`, to use a default value of `0.001`.
+
+```js
+const approximatelyEqual = (v1, v2, epsilon = 0.001) => Math.abs(v1 - v2) < epsilon;
+```
+
+<details>
+<summary>Examples</summary>
+
+```js
+approximatelyEqual(Math.PI / 2.0, 1.5708); // true
+```
+
+</details>
+
+<br>[⬆ Back to top](#table-of-contents)
+
+
 ### average
 
 Returns the average of two or more numbers.