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ID Category Severity Reproducibility Date Submitted Last Update
0000634 [ALGLIB] Interpolation minor have not tried 2014-12-01 16:54 2014-12-04 12:04
Reporter SergeyB View Status public  
Assigned To SergeyB
Priority normal Resolution fixed  
Status resolved   Product Version
Summary 0000634: FIXED: instability in PolynomialBar2Pow() function
Description Function accumulated rounding errors when magnitude of abscissas was too large or too small (larger or smaller than S - scale parameter). The problem was in the inadequate placement of sampling points - too spread or too close. Now algorithm places sampling points according to spread of nodes of barycentric model, which results in more stable algorithm.
Additional Information
Programming language Unspecified
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- Issue History
Date Modified Username Field Change
2014-12-01 16:54 SergeyB New Issue
2014-12-01 16:54 SergeyB Status new => assigned
2014-12-01 16:54 SergeyB Assigned To => SergeyB
2014-12-01 16:54 SergeyB Programming language => Unspecified
2014-12-04 12:04 SergeyB Summary report by Thermofisher => FIXED: instability in PolynomialBar2Pow() function
2014-12-04 12:04 SergeyB Description Updated
2014-12-04 12:04 SergeyB Status assigned => resolved
2014-12-04 12:04 SergeyB Fixed in Version => Next 'Optimization' release
2014-12-04 12:04 SergeyB Resolution open => fixed


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