diff --git a/MiniPy.py b/MiniPy.py
index 5d50f88..465f894 100755
--- a/MiniPy.py
+++ b/MiniPy.py
@@ -1,35 +1,107 @@
 from math import *
 from random import *
+from hashlib import md5 as _md5
+from hashlib import sha1 as _sha1
+from collections import Counter
+import datetime
 import re
-import sublime, sublime_plugin
+import sublime
+import sublime_plugin
+
+
+def dnow():
+    return datetime.datetime.strftime(datetime.datetime.now(), '%d/%m/%Y')
+
+
+def tnow():
+    return datetime.datetime.strftime(datetime.datetime.now(), '%H:%M:%S')
+
+
+def dtnow():
+    return datetime.datetime.strftime(datetime.datetime.now(), '%d/%m/%Y %H:%M:%S')
+
+
+def _hashfunc(hashfunc, obj):
+    s = str(obj)
+    h = hashfunc(s.encode('utf-8'))
+    return h.hexdigest()
+
+
+def md5(obj):
+    return _hashfunc(_md5, obj)
+
+
+def sha1(obj):
+    return _hashfunc(_sha1, obj)
+
+
+def set_intersect(itr0, itr1):
+    s0, s1 = set(itr0), set(itr1)
+    return s0.intersection(s1)
+
+
+def set_difference(itr0, itr1):
+    s0, s1 = set(itr0), set(itr1)
+    return s0 - s1
+
+
+def set_symdiff(itr0, itr1):
+    s0, s1 = set(itr0), set(itr1)
+    return s0.symmetric_difference(s1)
+
+
+def formatnum(num, digits, scientificNotation=None):
+
+    def normalFormatting(num, digits):
+        return ('{:.%df}' % digits).format(num)
+
+    def scientificFormatting(num, digits):
+        return ('{:.%de}' % digits).format(num)
+
+    if scientificNotation is False:
+        return normalFormatting(num, digits)
+
+    if scientificNotation is True:
+        return scientificFormatting(num, digits)
+
+    if scientificNotation is None:
+        scientificNotation = 8
+
+    if isinstance(scientificNotation, int):
+        if len(normalFormatting(num, digits)) > scientificNotation:
+            return scientificFormatting(num, digits)
+        return normalFormatting(num, digits)
+
+
+# reverse() in python3
+def rev(s):
+    return s[::-1]
 
-# reverse() in python3 
-def rev(s): return s[::-1]
 
 class Minipy_evalCommand(sublime_plugin.TextCommand):
-	def run(self, edit, user_input=None):
-		self.edit = edit
-		view = self.view
-		script = ""
-
-		# sum the total number of special char $
-		total = 0
-		for region in view.sel():
-			total += view.substr(region).count("$")
-
-		print("total = ", total)
-		# build a list from 1 to the number of special chars
-		serial_number = list(range(1, total+1))
-		# serial_number.reverse()
-		serial_number = rev(serial_number)
-		print(repr(serial_number))
-
-		# replace each special char $ with the next index from serial_number list
-		# and eval the expression
-		for region in view.sel():
-			if region.begin() != region.end():
-				script = view.substr(region)
-				for n in range(script.count("$")):
-					script = re.sub(r"\$", str(serial_number.pop()), script, 1)
-				# print(eval(script))
-				view.replace(edit, region, str(eval(script)))
+    def run(self, edit, user_input=None):
+        self.edit = edit
+        view = self.view
+        script = ""
+
+        # sum the total number of special char $
+        total = 0
+        for region in view.sel():
+            total += view.substr(region).count("$")
+
+        print("total = ", total)
+        # build a list from 1 to the number of special chars
+        serial_number = list(range(1, total + 1))
+        # serial_number.reverse()
+        serial_number = rev(serial_number)
+        print(repr(serial_number))
+
+        # replace each special char $ with the next index from serial_number list
+        # and eval the expression
+        for region in view.sel():
+            if region.begin() != region.end():
+                script = view.substr(region)
+                for n in range(script.count("$")):
+                    script = re.sub(r"\$", str(serial_number.pop()), script, 1)
+                # print(eval(script))
+                view.replace(edit, region, str(eval(script)))
diff --git a/README.md b/README.md
index 27efdb1..4d9831f 100755
--- a/README.md
+++ b/README.md
@@ -2,16 +2,22 @@
 
 Sublime Text 3 plugin - inline python evaluation.
 
+## Functionality
+
+### As a calculator
+
 For example you can write 3.14*0.6 and get the result (1.884) in your text.
 It also supports multiple selection.
 
+### Incremnt counter at cursor positions
+
 Another feature is the use of $ as accumolation variable, e.g. having the following multipe selection:
 
 	arr[$]
 	arr[$]
 	arr[$]
 
-will result with 
+will result with
 
 	arr[1]
 	arr[2]
@@ -23,6 +29,84 @@ similarly:
 	arr[$+2]  -> arr[3]
 	arr[$*3]     arr[6]
 
+### General Python evalueator
+
+Besides that, you have the following imports avaiable:
+
+	from math import *
+	from random import *
+	from collections import Counter
+	import datetime
+	import re  # though you should probably use the build in regex features of ST instead.
+
+So you can do:
+
+	Counter(('Ann', 'Bob', 'Bob', 'Michael'))                                     -> Counter({'Bob': 2, 'Ann': 1, 'Michael': 1})
+	Counter(('Ann', 'Bob', 'Bob', 'Michael', 'michael'))                          -> Counter({'Bob': 2, 'Ann': 1, 'michael': 1, 'Michael': 1})
+	Counter(name.title() for name in ('Ann', 'Bob', 'Bob', 'Michael', 'michael')) -> Counter({'Bob': 2, 'Michael': 2, 'Ann': 1})
+
+### Computing checksums
+
+And the functions `md5` and `sha1` returns the correspondingly hex-digest of the stringified version of the inputs, e.g. `md5(['foo', 'bar', 'baz']) = dbb432a3f0ac1a2687911715dfbf7502`. Notice that it's possible to hash the list _because it's the string-representation of the list which are being hashed!_
+
+The python `hashlib.md5` and `hashlib.sha1` functions are avaiable under the names `_md5` and `_sha1`.
+
+### Inserting datatimes
+
+The functions `dnow`, `tnow` and `dtnow` return respectively the current string-formatted date, time and datetime:
+
+	dnow()  -> 03/05/2017
+	tnow()  -> 09:36:03
+	dtnow() -> 03/05/2017 09:36:03
+
+Notice that you need to have parenthesis after the function name to invoke the function call.
+
+
+### Computing with sets
+
+While you can just use the regular python to do set computations, there's a few functions included for convinience: `set_intersect`, `set_difference` and `set_symdiff`.
+
+The functions takes two iterable arguments, which are turned into sets, and the computations are performed:
+
+	set_intersect('foo bar', 'foo baz')  -> {'b', 'a', ' ', 'o', 'f'}
+	set_intersect('foo baz', 'foo bar')  -> {'b', 'a', ' ', 'o', 'f'}
+	set_difference('foo baz', 'foo bar') -> {'z'}
+	set_difference('foo bar', 'foo baz') -> {'r'}
+	set_symdiff('foo baz', 'foo bar')    -> {'z', 'r'}
+	set_symdiff('foo bar', 'foo baz')    -> {'z', 'r'}
+
+
+### Formatting numbers
+
+The fnuction `formatnum` formats numbers, and takes two mandatory and an optional argument:
+
+num
+:	The number bieng formatted.
+
+digits
+:	The number of desired digits in the formatted number.
+
+scientificNotation
+:	Wether of not to use scientific notation.
+:	Can be True, False or int, where int is the threshold for how many characters the number may contain when formatted un-scientifically, before switching to scientific notation.
+:	This is the default behaviour, and it's set to 8.
+
+Example usage:
+
+	formatnum(0.123456789, 4)                -> 0.1235
+	formatnum(0.123456789, 9)                -> 1.234567890e-01
+	formatnum(123456789.0, 9)                -> 1.234567890e+08
+	formatnum(123456789.0, 2)                -> 1.23e+08
+	formatnum(123.456789, 12)                -> 1.234567890000e+02
+	formatnum(123.456789, 12, False)         -> 123.456789000000
+	formatnum(123.456789, 3)                 -> 123.457
+	formatnum(3.14159, 4)                    -> 3.1416
+	formatnum(3.14159, 3)                    -> 3.142
+	formatnum(3.14159, 2)                    -> 3.14
+	formatnum(3.14159, 2, True)              -> 3.14e+00
+	formatnum(3.141592653589793238462643, 3) -> 3.142
+
+
 ## Usage
 
 To evaluate term, highlight and: