From: Wybo Dekker <wybo@...4all.nl>
Date: 2012-08-19T14:34:39+09:00
Subject: Re: Access returned value in a string?

Start by doing:
u,v,p=nil

-- 
Wybo

On 19 aug. 2012, at 02:17, Dave Castellano <lists@ruby-forum.com> wrote:

> Stefan Codrescu wrote in post #1072788:
>> Additionally you could do something like
>> questions = [ "a slide is placed #{a=rand(3..15), a} cm to the left of a
>> lens."
>> a could then be passed to some function.
>> 
>>> questions =
>>> "A slide is placed #{rand(3..15)} cm to the left of a lens."
>> 
>> StefaN
> 
> Tried that...
> I have the following...
> questions = [
>   "A slide is placed #{u = rand(3..15)} cm to the left of a lens.  The 
> image is in perfect focus on the screen #{v = rand(1..4)} m to the right 
> of the lens. What is the power of the lens?",
>   "A slide is placed #{u = rand(3..15)} cm to the left of a +#{p = 
> rand(3..15)} D lens.  At what distance will the screen need to be placed 
> to the right of the lens to have the image be in focus?",
>  "An image is in focus #{v = rand(3..15)} m to the right of a +#{p = 
> rand(3..15)} D lens.  At what distance (in cm) to the left of the lens 
> is the slide placed?"
> 
> puts questions[0]
> puts u
> puts v
> I can't figure out why but the values of u and v returned are always the 
> values of the first instance of #{} in the second and third question.
> 
> -- 
> Posted via http://www.ruby-forum.com/.
>