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Waveform Audio File Format  |  1993-11-02  |  184.9 KB  |  1 channel  |  11,025 sample rate  |  17 seconds
Transcription: Here the minus operator has one argument, y, that is an object of the fraction class. The overloaded unary operator is called. Notice the operator is used in this line just like the build-in minus operator can be used for build-in data types.