Changes between Initial Version and Version 1 of Ticket #6068, comment 13


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Timestamp:
2020-08-19T09:26:01Z (4 years ago)
Author:
Karim Adbdelhak

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  • Ticket #6068, comment 13

    initial v1  
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    12 The crucial part is `((delta-1)^2)^(0.5/a[i,7])` which can be simplified to `(delta-1)^(1/a[i,7])`. Looking up the value for `a[i,7]` yields `0.3` for all `i`. As far as i can see the actual error reporting value `(-0.996066)^(1.33333)` could be wrong, since `1/0.3 = 0.3333 <> 1.3333`, but i might be missing some simplifications here. Also the actual error is thrown from a partially differentiated version of this function, so that might be the origin for this discrepancy.
     12The crucial part is `((delta-1)^2)^(0.5/a[i,7])` which can be simplified to `(delta-1)^(1/a[i,7])`. Looking up the value for `a[i,7]` yields `0.3` for all `i`. As far as i can see the actual error reporting value `(-0.996066)^(1.33333)` could be wrong, since `1/0.3 = 3.3333 <> 1.3333`, but i might be missing some simplifications here. Also the actual error is thrown from a partially differentiated version of this function, so that might be the origin for this discrepancy.
    1313
    1414Nevertheless the same error should occur in the original function since `delta` has a minimum value of `0` defined in the function itself. That allows the base to become negative and since the exponent is not of integer value, this error occurs.