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floating point error

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  • Floating point — In computing, floating point describes a method of representing real numbers in a way that can support a wide range of values. Numbers are, in general, represented approximately to a fixed number of significant digits and scaled using an exponent …   Wikipedia

  • Decimal floating point — Floating point precisions IEEE 754: 16 bit: Half (binary16) 32 bit: Single (binary32), decimal32 64 bit: Double (binary64), decimal64 128 bit: Quadruple (binary128), decimal128 Other: Minifloat · Extended precision Arbitrary precision… …   Wikipedia

  • Double-precision floating-point format — In computing, double precision is a computer number format that occupies two adjacent storage locations in computer memory. A double precision number, sometimes simply called a double, may be defined to be an integer, fixed point, or floating… …   Wikipedia

  • Error function — Plot of the error function In mathematics, the error function (also called the Gauss error function) is a special function (non elementary) of sigmoid shape which occurs in probability, statistics and partial differential equations. It is defined …   Wikipedia

  • Point of interest — A point of interest, or POI, is a specific point location that someone may find useful or interesting. An example is a point on the Earth representing the location of the Space Needle, or a point on Mars representing the location of the mountain …   Wikipedia

  • Round-off error — For the acrobatic movement, roundoff, see Roundoff. A round off error, also called rounding error, is the difference between the calculated approximation of a number and its exact mathematical value. Numerical analysis specifically tries to… …   Wikipedia

  • Numerical error — In software engineering and mathematics, numerical error is the combined effect of two kinds of error in a calculation. The first is caused by the finite precision of computations involving floating point or integer values. The second usually… …   Wikipedia

  • Discretization error — In numerical analysis, computational physics, and simulation, discretization error is error resulting from the fact that a function of a continuous variable is represented in the computer by a finite number of evaluations, for example, on a… …   Wikipedia

  • Fatal error — Not to be confused with fatal system error. In computing, a fatal error or fatal exception error is an error that causes a program to abort and may therefore return the user to the operating system. When this happens, data that the program was… …   Wikipedia

  • Truncation error — or discretization error is error made by numerical algorithms that arises from taking finite number of steps in computation. It is present even with infinite precision arithmetic, because it is caused by truncation of the infinite Taylor series… …   Wikipedia

  • Affine arithmetic — (AA) is a model for self validated numerical analysis. In AA, the quantities of interest are represented as affine combinations (affine forms) of certain primitive variables, which stand for sources of uncertainty in the data or approximations… …   Wikipedia

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