IBM Floating Point Architecture
IBM System/360 computers, and subsequent machines based on that architecture (mainframes), support a hexadecimal floating-point format.
In comparison to IEEE 754 floating-point, the IBM floating-point format has a longer significand, and a shorter exponent. All IBM floating-point formats have 7 bits of exponent with a bias of 64. The normalized range of representable numbers are from 16-65 to 1663 (approx. 5.39761 × 10-79 to 7.237005 × 1075).
The number is represented as the following formula: (-1)sign × 0.significand × 16exponent-64
Read more about IBM Floating Point Architecture: Single-precision 32-bit, Double-precision 64-bit, Extended-precision 128-bit, Arithmetic Operations, IEEE 754 On IBM Mainframes, Special Uses, Systems Which Use Base-16 Excess-64 Floating-Point Format
Famous quotes containing the words floating, point and/or architecture:
“They [the children] live in a world of delightful imagination; they pursue persons and objects that never existed; they make an Argosy laden with gold out of a floating butterfly,and these stupid [grown-up people] try to translate these things into uninteresting facts.”
—Woodrow Wilson (18561924)
“If mothers are told to do this or that or the other,... they lose touch with their own ability to act.... Only too easily they feel incompetent. If they must look up everything in a book, they are always too late even when they do the right things, because the right things have to be done immediately. It is only possible to act at exactly the right point when the action is intuitive or by instinct, as we say. The mind can be brought to bear on the problem afterwards.”
—D.W. Winnicott (20th century)
“The two elements the traveler first captures in the big city are extrahuman architecture and furious rhythm. Geometry and anguish. At first glance, the rhythm may be confused with gaiety, but when you look more closely at the mechanism of social life and the painful slavery of both men and machines, you see that it is nothing but a kind of typical, empty anguish that makes even crime and gangs forgivable means of escape.”
—Federico García Lorca (18981936)