Find the intersection points' of InterPloatFunction and DefiningFun?

[ozcelikelif (Elif Özçelik)]

Hi, I have plotted my functions but unable to find their intersection values. Is there any command to find them?

Thanks

[rohitnamjoshi]

Depending on your functions, you may be able to use Solve or NSolve or Reduce. Simple example

sol = Solve[x == Cos[x], x, Reals] // N
solX = x /. sol // First
solY = Cos[solX] (* same as solX *)

Plot[{x, Cos[x]}, {x, 0, Pi/2}, 
 Epilog -> {Red, PointSize[Large], Point[{solX, solY}]}]