wolframalpha - What is the constant term obtained when using Integration in Wolfram Alpha? -

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I try to use wolfram alpa to calculate complex integral, 

 < Code> integrated (0.0016 * V ^ (- 0.5) * (1-exp (- 0.0112 * v ^ 0.5)) 0.0036 * v ^ (- 0.5) * (1-exp (-0.0090 * v ^ 0.5)))

I get the following result 

  0.285714 e ^ (- 0.0112 sqrt (v)) + 0.8 e ^ (- 0.009 sqrt (v)) + 0.0104 sqrt (v) + constant

I'm wondering what it means stable ? The reason I am asking for is the same as I need to evaluate the result on certain points of v to get a certain integral.

Cheers


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