Changes between Initial Version and Version 1 of Ticket #4630, comment 3


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Timestamp:
2017-11-16T11:35:58Z (7 years ago)
Author:
Henning Kiel

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  • Ticket #4630, comment 3

    initial v1  
    1515being transformed to
    1616{{{
    17 a*b = log(f(c))
     17a+b = log(f(c))
    1818}}}
    1919or vice-versa. The two equations are equivalent from a mathematical point of view; however, the residual of the first is always well-defined, while the residual of the second can only be computed if f(c) > 0, which could be problematic for a numerical solver if c is selected as a tearing variable. Another example is reported in #4293