Changes between Initial Version and Version 1 of Ticket #21819


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Timestamp:
11/09/16 08:11:28 (4 years ago)
Author:
rws
Comment:

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  • Ticket #21819

    • Property Dependencies changed from to #11349
    • Property Summary changed from Symbolical erfc() implementation to Rewrite error functions and documentation
  • Ticket #21819 – Description

    initial v1  
    1 People need to manipulate statistical distribution functions as in https://ask.sagemath.org/question/35407/use-cumulative-distribution-functions/
    2 To provide the means a symbolical version of `erfc` is necessary. The current `error_fcn()` is only numerical.
     1This ticket should accomplish:
     2 * implement inverse error function `inverf` (#11349)
     3 * implement imaginary error function `erfi`.
     4 * People need to manipulate statistical distribution functions as in https://ask.sagemath.org/question/35407/use-cumulative-distribution-functions/. To provide the means a symbolical version of `erfc` is necessary. The current `error_fcn()` is only numerical.
     5 * make them all `GinacFunction`s
     6 * put it all in a separate file `functions/error.py` with central documentation
     7
     8http://dlmf.nist.gov/7