Re: algorithms + data structures = programs

Richard Heathfield wrote:
Oh dear. Wait there a second. [F/X rustle rustle] Okay, I think I'm with
you...

:-) what is it exactly -> [F/X rustle rustle]

but after that he starts with Bisection/Binary-Search

Page 13, in my edition.

page 14 in my edition ;-)


Okay, here at least we can perhaps help. But first, please explain which
bit(s) you don't understand. Is there a specific notation you are
struggling with? Is it the

----
\
\
/
/
----

sign? If so, fear not. This sign (the "sigma") is just the way
mathematicians have of expressing a loop-that-adds-up. Thus:

n - 1
----
\
\ a[i]
/
/
----
i = 0

is the mathematician's way of saying:

sum = 0;
for(i = 0; i < n; i++)
{
sum += a[i];
}

SIGMA is pretty easy for me. even quadraticd equations & binomail
theorm. trouble is something else.

If it's some other thing that's troubling you, please do give us more
detail.

sure, here is the trouble:

r := 10*r + d[i]
d[i] := r div 2
r := r-2*d[i]

more *shocking* is its implmentation in PASCAL.


thanks Rich

"arnuld"

.

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