Re: Konvalina/Wileman exercises

Richard Heathfield wrote:
> 
> I recently picked up "Programming with Pascal", by Konvalina and
> Wileman, McGraw-Hill, 1987 (ISBN 0-07-100536-6). I have no idea
> whether this book is considered good by the Pascal community, but
> it seems reasonably well-written, at least.
> 
> By chapter 3, the authors are ready to start setting exercises
> for which the solution is a complete Pascal program. There are
> eleven such exercises at the end of that chapter.
> 
> I have coded solutions for these exercises, which include the
> problem specification in the introductory comment for each
> exercise.
> 
> Since my home unaccountably lacks a resident Pascal expert, I
> would appreciate feedback on whether these are good answers.
> 
> All eleven of them may be found here:
> 
> http://www.cpax.org.uk/prg/****table/pascal/pwp/exercises/ch03/index.php

ex08 is a mistake.  The standard procedure write(real : field :
precision) covers the complete mechanism.  You want precision = 2
here.

 * The single input data line contains a real number r and an
 * integer p. Note that p indicates the position of the digit at
 * which r is to be rounded, relative to the units column (so 1
 * means round to nearest 10, 2 means round to nearest hundred, -1
 * means round to nearest hundredth, etc).

This is out and out wrong.  Apart from that, on a quick scan, I see
nothing wrong.

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                            cbfalconer at maineline.net



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