List argument

*To*: mathgroup at smc.vnet.net*Subject*: [mg36376] List argument*From*: pascal at go.ro (CeZaR)*Date*: Wed, 4 Sep 2002 02:56:31 -0400 (EDT)*Sender*: owner-wri-mathgroup at wolfram.com

Hi, I want to do these operations: eq = m x^2 + 2(m + 1)x + m + 2 l = {} For[i = -30, i < 30, i++, AppendTo[l, eq /. m -> i]] Plot[l, {x, -50, 50}] but i get this error: l is not a machine-size real number at x = -49.99999583333334 Can someone exaplain to me what i am doing wrong here?? Thanks! CeZaR