From 9925a1023bb4a4af81f5ee3ddf70ce1d60e4608b Mon Sep 17 00:00:00 2001
From: Mahdi Dibaiee <mdibaiee@aol.com>
Date: Mon, 20 Apr 2015 14:32:34 +0430
Subject: [PATCH] README

---
 lib/README.md | 19 ++++++++++++++++---
 1 file changed, 16 insertions(+), 3 deletions(-)

diff --git a/lib/README.md b/lib/README.md
index 62d10cf..f8b45e8 100644
--- a/lib/README.md
+++ b/lib/README.md
@@ -1,14 +1,27 @@
 Equation
 ========
-
 Solve math expressions or create equations for repeated and complex Math tasks.
 
 ```javascript
 // solve
-console.log(Equation.solve('4 * lg4 ^ 3')); // 32 
+console.log(Equation.solve('4 * lg4 ^ 3')); // 32
 
-// equations
+// equation
 let sphereArea = Equation.equation('4 * PI * r^2');
 
 console.log(sphereArea(5)); // 314.1592653589793
 ```
+
+API
+===
+####solve(expression: String)
+Takes a math expression and evaluates it, returning the result.
+
+###equation(expression: String)
+Takes a math expression containing variables, returning a function which
+replaces the variables with given arguments, and solves the expression.
+
+TODO
+====
+* Equation solver
+* More tests