chi2 function and delta (dirac) function

Dear rooters,

would you know if there exist a existing chi2 function in root

(i wish to draw the chi2 function)

Do i need to write it by hand in a TF1 ?

as a bonus question, would you know if the "Dirac" delta function exists ?

thank you Received on Tue Sep 28 2010 - 23:15:57 CEST