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NaN: Quiz


Question 1: The treatment of the sign bit of NaNs for some simple operations (such as ________) is different from that for arithmetic operations.
Euclidean spaceAbsolute valueVector spaceComplex number

Question 2: A bit-wise example of a ________ single precision NaN: x111 1111 1axx xxxx xxxx xxxx xxxx xxxx where x means don't care.
IEEE 754-2008Token ringIEEE 754 revisionIEEE 802.22

Question 3: On processors from Intel and ________ the first fraction bit of a binary significand is set to one for a qNaN and is zero for an sNaN.
ATI TechnologiesAMD 700 chipset seriesAMD K10Advanced Micro Devices

Question 4: In ________, NaN (Not a Number) is a value of numeric data type representing an undefined or unrepresentable value, especially in floating-point calculations.
ComputingElectrical engineeringElectronic engineeringSoftware engineering

Question 5: For the ________ decimal encodings, Infinities and NaNs are distinguished at a 'higher level', and so there is no confusion between NaNs and Infinities.
Token ringIEEE 754-2008IEEE 754 revisionIEEE 802.22

Question 6: Most fixed sized ________ formats do not have any way of explicitly indicating invalid data.
Natural numberIntegerRational numberField (mathematics)

Question 7: Systematic use of NaNs was introduced by the ________ floating-point standard in 1985, along with the representation of other non-finite quantities like infinities.
Token ringIEEE 754 revisionIEEE 802.22IEEE 754-2008


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