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Thanks for your reply. There is no real problem to be solved, I just want to understand the internals of *Mathematica*. So, overwriting a function do not guarantee the replacement at all kind of situations. What about using UpSetDelayed? ...
Dear Neil, thank you again for your answer. In the second part you hit the point, what I try to understand: If *foo* has the attribute *Flat* and y__foo can only match a sequence of *foo* than the whole expression can be transformed from...
Thank you both. Good to know that it was solved later, but also good, that I can solve the problem even with Rationalize[] and then N afterwards. Det[Rationalize[m]] // N > -1.70567*10^12
Dear all, When I use N[] to calculate some digits, I got different results during the first evaluation and the second evaluation. In particular, the result of N[Log[2], 38] is wrong compared to the second call: The last digit changes. Please...
Dear all, I'm surprised why "N" is not affecting all parameters of "Power", even "Power" has not the attribute "NHoldRest"? Is this feature documented somewhere, or is it a bug? Input: Attributes[Power] SetAttributes[myPower,...
No more comments? Where can I post a bug report?