jQuery Ajax call to .NET web service

Service must be decorated with System.Web.Script.Services.ScriptService attribute. $.ajax client side method may have contentType property set to "application/json; charset=utf-8" and dataType property set to "json." Then iterate through response objects with response.d.

COM: Pointers to Interfaces Required

A client must have an interface pointer to invoke methods in that interface.

http://msdn.microsoft.com/en-us/library/windows/desktop/ms687230(v=vs.85).aspx

Math Symbols

see http://mathforum.org/library/drmath/view/51433.html
for upside down A ("for all"), epsilon, etc.