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20-Turquoise
October 30, 2018
Solved

"-23.561944901920921149 or 1.835265713166714" A confusing.

  • October 30, 2018
  • 1 reply
  • 1668 views

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From the above.

The question is the "red", the above. 

"-23.561944901920921149 or 1.835265713166714" A confusing ? Or both are true ?

Regards.

Loi.

 

Best answer by Werner_E

As shown in the other thread both are roots and there are many others.

Where do the 1.835... stem from?

Adding pi to get another root is not correct because your function is not periodic. It may look that way for small (negative) values of x because e^(x-pi) gets rather small then. Nevertheless the roots are just close to the roots of cot(x) but always are a bit to the right of them.


B.png

 

1 reply

Werner_E25-Diamond IAnswer
25-Diamond I
October 31, 2018

As shown in the other thread both are roots and there are many others.

Where do the 1.835... stem from?

Adding pi to get another root is not correct because your function is not periodic. It may look that way for small (negative) values of x because e^(x-pi) gets rather small then. Nevertheless the roots are just close to the roots of cot(x) but always are a bit to the right of them.


B.png

 

lvl10720-TurquoiseAuthor
20-Turquoise
October 31, 2018

IV.PNGV.PNG

Anyway, things I have to say now is : I greatly appreciate your time and especially the explanation :

VI.PNGMany thanks again, Werner.Smiley HappySmiley HappySmiley Happy

Best Regards. 

25-Diamond I
October 31, 2018

@lvl107 wrote:

V.PNG

 

Yes, just omitting the keyword "fully" would have been an easier way to get the value alone than adding that strange assume-statement on top 😉