List, FindRoot, Bessel

*To*: mathgroup at smc.vnet.net*Subject*: [mg33628] List, FindRoot, Bessel*From*: "Riadh Alimi" <alimir3 at cti.ecp.fr>*Date*: Wed, 3 Apr 2002 18:09:04 -0500 (EST)*Organization*: Ecole Centrale Paris : Grde Voie des Vignes, 92295 Chatenay-Malabry Cdx*Sender*: owner-wri-mathgroup at wolfram.com

Hi ! I'm trying to find the first n roots of an equation involving Bessel Functions and to create a List of them. The best thing I find so far is : n = 10; For[i = 0, i < n, Print[FindRoot[- k BesselJ[1, k] + 30 BesselJ[0, k] == 0, {k, 2.32 + i Pi}]]; i++] And the result I get is : {k->3.2} {k->5.2} {k->8.3} .... Does anyone know what {k->3.2} means ? And how I could get only the value 3.2 instead of {k->3.2} in order to create a list? Thank you