0

How can one display the actual integral involved in special functions like this

MarcumQ[2, a, b]

in Mathematica?

David G. Stork
  • 41,180
  • 3
  • 34
  • 96
kaka
  • 351
  • 2
  • 11

2 Answers2

2
?? MarcumQ

Then click on the >> to go to the reference page. Then open the Details panel to see:

$Q_m(a,b) = \int\limits_b^\infty x \left( {x \over a}\right)^{m-1} I_{m-1}(a x) Exp[- {1 \over 2} (a^2 + x^2)]\ dx$

David G. Stork
  • 41,180
  • 3
  • 34
  • 96
  • When I type in mathematica: ?? MarcumQ ; Mathematica shows: MarcumQ[m,a,b] gives Marcum's Q function SubscriptQ, m. MarcumQ[m,a,Subscript[b, 0],Subscript[b, 1]] gives Marcum's Q function Subscript[Q, m](a,Subscript[b, 0])-Subscript[Q, m](a,Subscript[b, 1]). >> – kaka Mar 26 '15 at 01:53
  • 1
    I prefer pressing F1. – xzczd Mar 26 '15 at 02:23
0

To get your Integral(s), You can use Wolfram|Alpha, see Wolfram|Alpha Integration, see also How can I get all the results from a Wolfram | Alpha query?,

enter image description here

You ca also use http://www.wolframalpha.com/

enter image description here