Integration not solving - No real roots

Integration not solving - No real roots - Messages

#1 Posted: 2021/1/21 14:32:02
Tow Wai Lim

Tow Wai Lim

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Hi All,

I am doing an integration of a range. Unfortunately I cann find the solution. Can't see where is the problem.

Any advice is appreciated.

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#2 Posted: 2021/1/21 17:07:18
Jean Giraud

Jean Giraud

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Wrote

I am doing an integration of a range. Unfortunately I cann find the solution. Can't see where is the problem.


Answered in your other question.
#3 Posted: 2021/1/21 17:08:23
Alvaro

Alvaro

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Wrote

Hi All,

I am doing an integration of a range. Unfortunately I cann find the solution. Can't see where is the problem.

Any advice is appreciated.



Hi. You can't integrate functions defined in a "complicate" way, this is: can't integrate functions with "if", other constructors and ... solve nor roots.

The workaround it's implement your own numerical integration procedure, or use a odesolver for get the numeric integral.

Best regards.
Alvaro.
#4 Posted: 2021/1/21 18:46:00
Tow Wai Lim

Tow Wai Lim

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Hi Razonar & Jean,

Thanks for the advice. I still cant find a way to rewrite the equations given there is k in both side of the equation to solve.

Capture11.JPG

Need to solve the k in the function of w to continue calculation. Any suggestions is welcome.

Thanks

David


#5 Posted: 2021/1/21 22:34:24
Jean Giraud

Jean Giraud

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Group: User

Wrote

Thanks for the advice. I still cant find a way to rewrite the equations given there is k in both side of the equation to solve.


Attach the latest document, compact conveniently.
#6 Posted: 2021/1/22 05:32:38
Tow Wai Lim

Tow Wai Lim

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Hi Jean,

I dont see any document.
#7 Posted: 2021/1/22 10:40:09
Jean Giraud

Jean Giraud

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Wrote

Hi Jean,
I don't see any document.


I don't understand much in your stuff !
As it looks we can integrate something in there.
Cheers ... Jean

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