Re: Separating space and time functions

*To*: mathgroup at smc.vnet.net*Subject*: [mg130412] Re: Separating space and time functions*From*: debguy <johnandsara2 at cox.net>*Date*: Wed, 10 Apr 2013 00:49:07 -0400 (EDT)*Delivered-to*: l-mathgroup@mail-archive0.wolfram.com*Delivered-to*: l-mathgroup@wolfram.com*Delivered-to*: mathgroup-newout@smc.vnet.net*Delivered-to*: mathgroup-newsend@smc.vnet.net*References*: <kh164k$sam$1@smc.vnet.net>

g1=Simplify[D[f,t]/f]; g2=Simplify[Integrate[g1,t]]; your question begs the question if all integrals can be assumed solved using some method: no. but... the above seems to only depend on whether g1 has a proper derivative , and if that is so you can use Log directly (knowning that's the answer) rather than integrate, right?