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1Physics A well-defined reproducible temperature which can be used as a reference point, e.g. one defined by a change of phase.
‘The Fahrenheit and Celsius scales are based on two fixed points.’
2Computing as modifierDenoting a mode of representing a number by a single sequence of digits whose values depend on their location relative to a predetermined radix point.
‘these computers perform arithmetic in fixed-point binary format’
‘I was happy to see a discussion of fixed-point vs. floating-point math in the February issue.’
‘Ada does non-integer fixed-point types, which is very rare.’
‘Double-precision fixed-point would employ two times 24, or a 48-bit word length; double-precision floating-point would use a two times 32, or 64-bit mantissa.’
‘Three units of the five deal with fixed-point operations, and the remaining two - with floating-point operations.’
‘He is a longtime proponent of fixed-point arithmetic.’