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MathGroup Archive 2007

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Re: Evaluation Question

  • To: mathgroup at smc.vnet.net
  • Subject: [mg76513] Re: Evaluation Question
  • From: dh <dh at metrohm.ch>
  • Date: Wed, 23 May 2007 05:28:17 -0400 (EDT)
  • References: <f2u57d$k2n$1@smc.vnet.net>


Hi,

first you define a list of functions of 3 arguments, e.g.:

f={

#1+#2+#3&,

2#1+#2+#3&,

#1+2#2+#3&,

#1+#2+2#3&,

2#1+2#2+#3&

};

then you make a list of arguments, e.g.:

x={

{0,0,0},

{0,0,1},

{0,1,0},

{0,1,1},

{1,0,0},

{1,0,1},

{1,1,0},

{1,1,1}

} ;

now we apply all functions to all arguments:

Outer[Apply, f, x, 1]

hope this helps, Daniel







hoffmannick wrote:

> Can anyone help me solve the following problem?

> 

> I have a function of 3 variables, let's say

> f[a_, b_, c_] = a + b + c

> 

> Now I need to evaluate the function at some given points.  To evaluate

> at a single point I would do

> f[0,0,1]

> 

> For the point (0,0,1)

> 

> Now here is the main question.

> I need to evaluate this function at the points (0,0,0) through (1,1,1)

> That would be the points:

> 0,0,0

> 0,0,1

> 0,1,0

> 0,1,1

> 1,0,0

> 1,0,1

> 1,1,0

> 1,1,1

> 

> I'm testing these for approx 32 different functions.  Is there an easy

> way that I can define the function and then have it test all the

> points for me?  It will always be those finite points listed above.

> 

> I looked into the mathematica documentation and it said how to do this

> with a function of a single variable, but it didn't say how to do it a

> function of more than one variable.

> 

> I really appreciate your help

> 

> 




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