User's Manual

127
copy, and you may at your option oer warranty protection in
exchangeforafee.
2. YoumaymodifyyourcopyorcopiesoftheProgramorany
portionofit,thusformingaworkbasedontheProgram,and
copyanddistributesuchmodicationsorworkundertheterms
ofSection1above,providedthatyoualsomeetallofthese
conditions:
 a) Youmustcausethemodiedlestocarryprominentnotices
statingthatyouchangedthelesandthedateofanychange.
 b) Youmustcauseanyworkthatyoudistributeorpublish,that
inwholeorinpartcontainsorisderivedfromtheProgramor
anypartthereof,tobelicensedasawholeatnochargetoall
thirdpartiesunderthetermsofthisLicense.
 c) Ifthemodiedprogramnormallyreadscommands
interactively when run, you must cause it, when started running
forsuchinteractiveuseinthemostordinaryway,toprintor
display an announcement including an appropriate copyright
notice and a notice that there is no warranty (or else, saying
thatyouprovideawarranty)andthatusersmayredistribute
the program under these conditions, and telling the user how
toviewacopyofthisLicense.(Exception:iftheProgramitselfis
interactivebutdoesnotnormallyprintsuchanannouncement,
yourworkbasedontheProgramisnotrequiredtoprintan
announcement.)