Changes between Initial Version and Version 1 of Ticket #5529, comment 6


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Timestamp:
2019-06-13T22:25:45Z (6 years ago)
Author:
massimo ceraolo

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  • Ticket #5529, comment 6

    initial v1  
    1  To avoid too large loss of precision we should use many digits, with the consideration of readability I mentioned I  the ticket description that may suggest some reduction from the maximum. So I would prefer at least 10 digits
     1To avoid too large loss of precision we should use many digits, with the consideration of readability I mentioned I  the ticket description that may suggest some reduction from the maximum. So I would prefer at least 10 digits
    22
    33With this ticket''s example OM writes (radians):
    … …  
    55While dymola writes
    661.5707963267949
     7
     8If I remember well double precision translates into around 16 meaningful decimal digits. It this is true, I can guess that Dymola's programmer chose 14 to give a very high precision, while still being sure that roundoff errors do not affect the last shown digit. Maybe this is the right choice?