Abstract
The COSY Infinity software package by Berz et al. is widely used in the beam physics community. We report execution-based testing of its interval and Taylor model arithmetics. The testing strategy is careful to avoid contamination by inevitable rounding errors. Tests were ported to Sun’s F95 and INTLAB. In each package, we uncovered violations of containment which have all been corrected by their authors. We encourage users of COSY and most other software packages to check author/vendor web sites regularly for possible updates and patches.
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Corliss, G.F., Yu, J. (2004). Interval Testing Strategies Applied to COSY’s Interval and Taylor Model Arithmetic. In: Alt, R., Frommer, A., Kearfott, R.B., Luther, W. (eds) Numerical Software with Result Verification. Lecture Notes in Computer Science, vol 2991. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-24738-8_5
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DOI: https://doi.org/10.1007/978-3-540-24738-8_5
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