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ParameterRanges
As of version 9.0, vector analysis functionality is built into Mathematica 
gives the intervals over which each the of the parameters in the default coordinate system may range.
ParameterRanges[coordsys]
gives the ranges for each of the parameters in the coordinate system coordsys.
更多信息
- To use
, you first need to load the Vector Analysis Package using Needs["VectorAnalysis`"]. - Many of the coordinate systems do not have parameters, in which case Null is returned.
- The parameters are identified as #n, where n refers to the order in which the parameters are listed when the coordinate system is specified.
