Date: Feb 25, 2013 2:19 AM
Author: Jakub Serych
Subject: Re: Hold & Evaluate
Thanks to all, who have responded.

Jakub

> Dear mathgroup,

> I would like to generate sequence in the form:

>

> 1/1.2, 2/2.3, 3/3.4, 4/4.5, etc.

>

> It is very simple by a Table function:

>

> Table[n/(n + 0.1 (n + 1)), {n, 1, 15}]

>

> but as there are real numbers in denominators, Mathematica evaluates all and generates something like:

>

> {0.833333, 0.869565, 0.882353, 0.888889, 0.892857, 0.895522, etc.}

>

> How to evaluate numerators and denominators separately and print the

> sequen=

> ce in that "fraction like" form?

>

> I tested:

>

> #[[1]]/#[[2]] & /@ Table[{n, n + 0.1 (n + 1)}, {n, 1, 15}] and than used Hold[] and Evaluate[]:

>

> Hold[Evaluate[#[[1]]]/Evaluate[#[[2]]]] & /@ Table[{n, n + 0.1 (n + 1)},

> {n, 1, 15}]

>

> But it doesn't work as the Hold has "veto" power over any evaluation.

>

> Thanks in advance for any idea, how to do it

>

> Jakub