Re: Question: Applying a list of funcs to a list of expressions

*Subject*: [mg2935] Re: [mg2924] Question: Applying a list of funcs to a list of expressions*From*: me at talmanl.mscd.edu (Lou Talman)*Date*: 13 Jan 1996 05:30:50 -0600*Approved*: usenet@wri.com*Distribution*: local*Newsgroups*: wri.mathgroup*Organization*: Wolfram Research, Inc.*Sender*: mj at wri.com

The "obsolete" Compose operator, used in conjunction with Inner does the trick--in spite of the error messages: In[1]:= F = {f1, f2, f3} Out[1]= {f1, f2, f3} In[2]:= X = {x1, x2, x3} Out[2]= {x1, x2, x3} In[3]:= Inner[Compose, F, X, List] Compose::obsfn: Compose is an obsolete function, superseded by Composition. Compose::obsfn: Compose is an obsolete function, superseded by Composition. Compose::obsfn: Compose is an obsolete function, superseded by Composition. General::stop: Further output of Compose::obsfn will be suppressed during this calculation. Out[3]= {f1[x1], f2[x2], f3[x3]} --Lou Talman Begin forwarded message: >From: groskyd at gv.ssi1.com (David Rosky) >Subject: [mg2924] Question: Applying a list of funcs to a list of expressions >Organization: Silicon Systems, Inc. I would like to specify a list of functions such as: funcs = {f1, f2, f3} and a list of values to which the functions will be applied: vals = {val1, val2, val3} I would then like to apply to each function to each corresponding value respectively to obtain the following list: DesiredOutputList = {f1[val1], f2[val2], f3[val3]} I can do this explicitly by defining the functions in terms of the explicit elements of the list such as f1[x_] := x[[1]]^2 and so on for the other functions, but I was wondering if there is a built-in way to apply a list of functions respectively to the elements of a list of values which would be simpler and more efficient. I looked through the Mathematica book and nothing obvious popped out at me, but is seems like such a simple concept that it must be there somewhere. Thanks in advance, --David ------------------ groskyd at gv.ssi1.com ------------------