TD_DFFT ( { SERIES_SPEC | ART_SPEC } , FUNC_PARAMS ( [ ZERO_PADDING_OK ( {1 | 0} ), ] [ FREQ_STYLE ( {“K_INTEGRAL” | “K_SAMPLE_RATE” | “K_RADIANS” | “K_HERTZ”} ), ] [ HERTZ_SAMPLE_RATE ( float ), ] [ ALGORITHM ( {“COOLEY_TUKEY” | “SINGLETON”} ), ] [ HUMAN_READABLE ( {1 | 0} ) ] ) [, OUTPUT_FMT ( CONTENT ( { COMPLEX | AMPL_PHASE_RADIANS | AMPL_PHASE_DEGREES | AMPL_PHASE | MULTIVAR_COMPLEX | MULTIVAR_AMPL_PHASE | MULTIVAR_AMPL_PHASE_RADIANS | MULTIVAR_AMPL_PHASE_DEGREES | MULTIVAR_AMPL_PHASE } ) ) ] ) ;