Re: problem with Manipulate

*To*: mathgroup at smc.vnet.net*Subject*: [mg126554] Re: problem with Manipulate*From*: Bob Hanlon <hanlonr357 at gmail.com>*Date*: Sat, 19 May 2012 05:42:27 -0400 (EDT)*Delivered-to*: l-mathgroup@mail-archive0.wolfram.com*References*: <201205180927.FAA17173@smc.vnet.net>

It is caused by scoping. "Manipulate generates a DynamicModule object, with the variables u, v, etc. specified as local. " tmp := Plot[Sin[x (1 + a x)], {x, 0, 6}]; Manipulate[a = b; tmp, {b, 0, 2}] Bob Hanlon On Fri, May 18, 2012 at 5:27 AM, Physics is Everything....Almost <fizzycist at knology.net> wrote: > > Why does Manipulate[ Plot[Sin[x (1+ a x)], {x,0,6} ], (a,0,2} ] work.... > BUT..... the following doesn't.... > tmp = Plot[Sin[x (1+ a x)], {x,0,6} ] > Manipulate[ tmp , (a,0,2}] > I checked Attributes of Manipulate and saw HoldAll......but Hold what?? > thanks.....Jerry Blimbaum >

**References**:**problem with Manipulate***From:*"Physics is Everything....Almost" <fizzycist@knology.net>