Integrate ∫sin(sin(x)) dx - What is It?

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SUMMARY

The integral ∫sin(sin(x)) dx is confirmed as a non-elementary function, meaning it cannot be expressed in terms of elementary functions. Participants in the discussion noted that while Mathematica provides a result, it may not accurately represent the integral due to input errors. The best approach to handle such integrals is to express the integrand as a Taylor series and integrate that series. This integral does not have a widely recognized name, highlighting its complexity and the ongoing exploration in mathematical functions.

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What is ∫sin(sin(x)) dx ?

I was told that it was not an elementary function. Then what function is it?
 
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kahwawashay1 said:
What is ∫sin(sin(x)) dx ?

I was told that it was not an elementary function. Then what function is it?

I don't think it has a name yet. Do you want to name it?
 
Dick said:
I don't think it has a name yet. Do you want to name it?

Haha how can it not be already named? Can't someone solve it?
 
kahwawashay1 said:
Haha how can it not be already named? Can't someone solve it?
Solve what?

You've been told that it's not an elementary function.

About the best that can be done is to express the integrand as a Taylor series, the integrate that.
 
kahwawashay1 said:
Haha how can it not be already named? Can't someone solve it?

Some integrals that can't be expressed as elementary functions are useful enough that they are given special names. E.g. http://en.wikipedia.org/wiki/Exponential_integral Not being able to 'solve' something doesn't it isn't useful or that there is nothing you can say about it.
 
Dick said:
Some integrals that can't be expressed as elementary functions are useful enough that they are given special names. E.g. http://en.wikipedia.org/wiki/Exponential_integral Not being able to 'solve' something doesn't it isn't useful or that there is nothing you can say about it.

ohhh
But I just downloaded Mathematica, and when I integrate sin(sin(x)), it gives me: (1/2)(sin2(x2))
But I can't see how taking the derivative of that gives sinsinx
Is Mathematica wrong then?
 
kahwawashay1 said:
ohhh
But I just downloaded Mathematica, and when I integrate sin(sin(x)), it gives me: (1/2)(sin2(x2))
But I can't see how taking the derivative of that gives sinsinx
Is Mathematica wrong then?

Nvmmm I typed in the sin function in wrong format lol
 
And even the mighty Mathematica who knows the work of Gradsheyn and Rytzhik by heart couldn't do it...
 

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