# How can we plot gamma function numerically?

How can we plot this integration for m=1,\theta = 0.2? Here r_h(lower limit) = 1.

• Please enter your expressions in correctly formatted, copy-and-pasteable Mathematica code. – march Jul 7 '16 at 17:05
• NIntegrate[] could be used, but a faster way would be to formulate the equivalent ODE and use NDSolve[]. – J. M. will be back soon Jul 7 '16 at 17:06
• Per @J.M.'s comment, see for instance this answer. – march Jul 7 '16 at 17:07
• t = \!( *SubsuperscriptBox[([Integral]), (1), (r)](1/((1 - 4\ m\ /((r [Sqrt][Pi])) {GammaRegularized[3/2, r^2/((4 [Theta]))]})) [DifferentialD]r)) – Emlie Jul 7 '16 at 17:07
• Put the code in your question, please; however, Copy As > Input Text would be much better for you and for us. – J. M. will be back soon Jul 7 '16 at 17:10

f[r_] := 1/(1 - 4/(r*Sqrt[Pi])*Gamma[1.5, r^2/(4*0.2)])