Operator: Sum

[benjchristensen]

http://msdn.microsoft.com/en-us/library/hh212105(v=vs.103).aspx
http://msdn.microsoft.com/en-us/library/hh211904(v=vs.103).aspx
http://msdn.microsoft.com/en-us/library/hh212004(v=vs.103).aspx
http://msdn.microsoft.com/en-us/library/hh212033(v=vs.103).aspx
http://msdn.microsoft.com/en-us/library/hh229430(v=vs.103).aspx
http://msdn.microsoft.com/en-us/library/hh229456(v=vs.103).aspx
http://msdn.microsoft.com/en-us/library/hh229627(v=vs.103).aspx
http://msdn.microsoft.com/en-us/library/hh229323(v=vs.103).aspx
http://msdn.microsoft.com/en-us/library/hh229683(v=vs.103).aspx
http://msdn.microsoft.com/en-us/library/hh229319(v=vs.103).aspx