An arithmetic is described that can replace floating-point arithmetic for programming tasks requiring assured accuracy. A general explanation is given of how the arithmetic is constructed with C++, and a programming example in this language is supplied. Times for solving representative problems are presented.
finder A recent paper  describes a variable precision interval arithmetic algorithm for the computation of the zeros of an analytic function inside a given rectangle and to a user-specified accuracy. The algorithm is based on the argument principle in the set of complex numbers C and carries much potential for parallelization at various levels of… (More)
An interval arithmetic algorithm for the computation of the zeros of an analytic function inside a given rectangle is presented. It is based on the argument principle in the set of complex numbers C, is guaranteed to converge, and delivers its answers to a prespecified accuracy. The precision of computation is varied dynamically to maximize efficiency.… (More)
BACKGROUND In Wilson disease, copper is not sufficiently excreted into bile due to the absence or malfunction of the Wilson protein copper ATPase in the excretory pathway of hepatocytes. Copper is found in sweat. It is unknown if the Wilson protein plays a role in copper excretion into sweat. It is the aim of this study to investigate Wilson protein… (More)