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ID Category Severity Reproducibility Date Submitted Last Update
0000573 [ALGLIB] Spec.functions major always 2013-10-21 15:33 2013-10-21 15:33
Reporter higuerap View Status public  
Assigned To
Priority normal Resolution open  
Status new   Product Version
Summary 0000573: Wrong result for Jacobian elliptic function 'Dn'
Description Going for:

alglib::jacobianellipticfunctions(u, m, sn, cn, dn, ph);

with: u = -13.3077 and m = 0.9162 yields:

sn alglib -1
cn alglib 3.06162e-16
dn alglib 0.147015

Sn and Cn are correct, while Dn, which should be sqrt(1-m*sn*sn) is 0.147015 instead of the expected 0.289482
Additional Information
Programming language Unspecified
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- Issue History
Date Modified Username Field Change
2013-10-21 15:33 higuerap New Issue
2013-10-21 15:33 higuerap Programming language => Unspecified

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