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 ``` A01 Complex. This type implements complex numbers with the usual arithmetic operations. Creates a new complex number. The real part of this number. The imaginary part of this number. Creates a new complex number with an imaginary part of 0. The real part of this number. Returns a string representation of this number in the form x + yi. This method is inherited from System.Object. Checks the equality of two complex numbers. This method is inherited from System.Object. The object to compare this number with. Returns a hash code for this number. This method is inherited from System.Object Adds two complex numbers and returns a new complex number with the result Subtracts two complex numbers and returns a new complex number with the result Multiplies two complex numbers and returns a new complex number with the result Divides two complex numbers and returns a new complex number with the result Compares two complex numbers for equality. Compares two complex numbers for inequality. Converts a complex number to a double value by returning the real part of it. Converts a double number to a complex number by setting the imaginary part to 0. Returns the real part of this number. Returns the imaginary part of this number. ```