What is "discussion of a problem"

Discussion \Dis*cus"sion\, n. [L. discussio a shaking, examination, discussion: cf. F. discussion.]

1. The act or process of discussing by breaking up, or dispersing, as a tumor, or the like. [archaic]

2. The act of discussing or exchanging reasons; examination by argument; debate; disputation; agitation.

   The liberty of discussion is the great safeguard of all other liberties.
   --Macaulay.

   Discussion of a problem or Discussion of an equation (Math.), the operation of assigning different reasonable values to the arbitrary quantities and interpreting the result.
   --Math. Dict.