Update README.md

README.md

@@ -1,7 +1,29 @@
 # Password-Entropy-Calculator
 
 Built off of <a href="https://github.com/tests-always-included/password-strength" target="_blank">tests-always-included/password-strength</a> 
-This Calculates the relative strength of a password using several techniques. Primarily this relies on letter trigraphs, which check each set of 3 characters in a given password. This also calculates the entropy bits based on Claude Shannon's technique on determining the number of bits required to represent a set of characters and multiplying it by the length of the password and there's a check to see if a password is contained in a list of common passwords and as a bonus there's also a "Search Space" or (Total Possible Combinations) Calculator, inspired by <a href="https://www.grc.com/haystack.htm" target="_blank">GRC's Interactive Brute Force Password “Search Space” Calculator.</a> 
+This Calculates the relative strength of a password using several techniques. Primarily this relies on letter trigraphs, which check each set of 3 characters in a given password. This also calculates the entropy bits based on Claude Shannon's technique on determining the number of bits required to represent a set of characters and multiplying it by the length of the password and there's a check to see if a password is contained in a list of common passwords and as a bonus there's also a "Search Space" or (Total Possible Combinations) Calculator, inspired by <a href="https://www.grc.com/haystack.htm" target="_blank">GRC's Interactive Brute Force Password “Search Space” Calculator.</a> You can toggle between the normal algorithm which is:  
+```javascript
+ Math.pow(number-of-characters, Password-length);
+```
+and a symbol character set size of 32.
+
+GRC's algorithm which is:
+
+```javascript
+function GRC(Password-length) 
+{ 
+  if(Password-length < 1) 
+  {
+    return 0 ; 
+  }
+  if (Password-length == 1)
+  {
+    return Math.pow(number-of-characters, Password-length); 
+  }
+  return Math.pow(number-of-characters, Password-length - 1) + GRC(Password-length - 1); 
+}
+```
+and a symbol character set size of 32.
 
   ![Password Entropy Calculator](https://raw.githubusercontent.com/AlecMcCutcheon/Password-Entropy-Calculator/master/Password%20Entropy%20Calculator%20.jpg)
 Format: ![Alt Text](url)