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var
ape = new Q.ComplexNumber(),
bee = new Q.ComplexNumber( 1 ),
elk = new Q.ComplexNumber( 1, 2 ),
fox = new Q.ComplexNumber( elk )
ape.toText()// Returns '0'
bee.toText()// Returns '1'
elk.toText()// Returns '1 + 2i'
fox.toText()// Returns '1 + 2i'
elk.isEqualTo( fox ) // Returns true
elk.index === fox.index// Returns false