Floating Point, IEEE Standard unifies arithmetic model
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Floating Point, IEEE Standard unifies arithmetic model
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C l e v e ’s C o r n e r
Floating points IEEE Standard unifies arithmetic model by Cleve Moler
I
f you look carefully at the definition of fundamental
where f is the fraction or mantissa and e is the exponent. The
arithmetic operations like addition and multiplication,
fraction must satisfy
you soon encounter the mathematical abstraction known
as the real numbers. But actual computation with real numbers is not very practical because it involves limits and infinities. Instead, MATLAB and most other technical computing
environments use floating-point arithmetic, which involves a finite set of numbers with finite precision. This leads to phenomena like roundoff error, underflow, and overflow. Most of the time, MATLAB can be effectively used without worrying about these details, but every once in a while, it pays to know something about the properties and limitations of floatingpoint numbers.
