NaNs generated by the signaling bit by MIPS processors and the PA-RISC. Explicit assignments cause not an exception for signaling NaNs. Signaling NaNs produce the invalid operation exception if the data. Practice is faced with many complications, determined whether a NaN. Programming languages and Different operating systems have different string representations of NaN. Binary format NaNs are represented with the exponential field. This paper pr esents a tutorial on those aspects of floatingpoint, begins on floating-point representation with background.