Change multiplication operations into convolution operations

*To*: mathgroup at smc.vnet.net*Subject*: [mg73587] Change multiplication operations into convolution operations*From*: "Zhao, Liang" <ZhaoL at MedImmune.com>*Date*: Thu, 22 Feb 2007 04:39:05 -0500 (EST)

If I want to change the multiplication operations into convolution operations in an arbitrary function such as C1 F1[t] F2[t] + C2 F3[t] F4[t] F1[t], where Fi(t) represents functions of t and Ci represents constant, into C1 F1[t] * F2[t] + C2 F3[t] * F4[t] * F1[t], where "*" indicate convolution. any good elegant way to do it? High appreciations! Liang