Re: Variables Within Homemade Functions

*To*: mathgroup at smc.vnet.net*Subject*: [mg69607] Re: [mg69590] Variables Within Homemade Functions*From*: Murray Eisenberg <murray at math.umass.edu>*Date*: Sun, 17 Sep 2006 06:57:44 -0400 (EDT)*Organization*: Mathematics & Statistics, Univ. of Mass./Amherst*References*: <200609160750.DAA00365@smc.vnet.net>*Reply-to*: murray at math.umass.edu

Easy: enclose your definition of the function in Module and include the variable(s) at issue in the first argument (a list) where the local variables are declared. Gregory Lypny wrote: > Hello everyone, > > How can I ensure that variables in my home made function do not > conflict with variables with the same name outside the function? Say > I have a variable, t, whose value in my notebook is 17. I've brought > in a function from another notebook, myFunction, that contains a > variable named t, and in running the function, t will take on a > value. Unfortunately, both t's are the same. Is there any way to > make the t within the my function a local variable just like index > counters in the Table and Do functions? > > Regards, > > Greg > > t=17 > > myFunction[x_]:=(t=someOtherValue; rest of function here) > > -- Murray Eisenberg murray at math.umass.edu Mathematics & Statistics Dept. Lederle Graduate Research Tower phone 413 549-1020 (H) University of Massachusetts 413 545-2859 (W) 710 North Pleasant Street fax 413 545-1801 Amherst, MA 01003-9305

**References**:**Variables Within Homemade Functions***From:*Gregory Lypny <gregory.lypny@videotron.ca>