ChartQ

ChartQ[symbol] yields True if symbol has been defined as a chart and False otherwise.

• Each chart has an upvalue for this function.
• Charts are handled in the package xCoba`, but this function is already defined in xTensor`.
• See: Section 4.7.
• See also: Chart, $Charts.
• New in version 0.
• Last update: 25-X-2007 for version 0.9.3 of xTensor`.


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