This abbreviation is usually used in land survey literatues when talking about the ground or grade elevations.
What is the origin of the abbreviation ve (usually expressed as +ve or -ve) in land surveying?
+ve = POSITIve
-ve = NEGATIve
Just a short form without writing the whole word. Dunno who invented it though. Pretty clever if you asked me.
Reply:It is also used in Electricity to signify positive +ve and negative -ve.
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