OLE DB Provider for SQL Server error '80040e14'

I am getting an error when trying to execute the following statement in ms sql. It works fine in ms access. I get the following error:
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Microsoft OLE DB Provider for SQL Server error '80040e14'
'cdbl' is not a recognized function name.
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Here is the sql that poses a problem.

Any help would be aprecitated, thx.
<code>

dim rsgetlocs : set rsgetlocs = objConn.execute("SELECT distinct ((69.1*(Latitude - " & rsZip("latitude")& "))*(69.1*(Latitude - " & rsZip("latitude") & "))+(69.1*( Longitude - " & rsZip("longitude") & ")*cos( " & rsZip("latitude") & "/57.3)*(69.1*(Longitude - " & rsZip("longitude") & ")*cos( " & rsZip("latitude") & "/57.3)))) as disc, ZIPCODES_TBL.* FROM ZIPCODES_TBL WHERE Latitude <= ("&rsZip("latitude")&" + ("&passedradius&" / ((6076 / 5280) * 60))) AND Latitude >= ("&rsZip("latitude")&" - ("&passedradius&" / ((6076 / 5280) * 60))) AND Longitude >= ("&rsZip("longitude")&" - ("&passedradius&" / (((cos(cdbl("&rsZip("latitude")&" * 3.141592653589 / 180)) * 6076) / 5280) * 60))) AND Longitude <= ("&rsZip("longitude")&" + ("&passedradius&" / (((cos(cdbl("&rsZip("latitude")&" * 3.141592653589 / 180)) * 6076) / 5280) * 60)))")

</code>

you have to use cast function in T-sql to convert a value to double or convert().

good luck