If the value is a complex floating point number, the value must be represented as a real part and an imaginary part, separated by a comma and enclosed in parentheses. Spaces may precede and follow the real and imaginary parts. The real and imaginary parts are represented as floating point values (§5.2.4). Such a representation is regarded as a single value for the complex floating point number. This representation may be located anywhere within columns 11-80.