1. Re: Optimizatin (was Edom 2.02)
The first program that I wrote in Euphoria was a starfield.
First, I had tried to store the data as different series --
the star's X coordinate in one series, and the stars Y
coordinate in another. I did have it do much of the math
as operations of atoms on sequences. But when I tried to
more efficient, simplify the math to fewer expressions, which
were all sequence upon sequence, it bogged down. I had replaced
the seperate point data with one series i.e.: {{0,0},{2,2},etc...}
with each smaller sequence representing a point. I don't know
if I just ran out of memory (I only have 640K) but it ran
a lot slower. I wonder about the memory because it resorted to disk.
Which also doesn't make sense. Robert -- Do multidimensional
sequences take up a lot of memory as overhead? And how about
a built in function that could return the first element of a series?
ie: FirstEl({{1,2},{2,3},{{1,2},3}={1,2,{1,2}}. I could write
something like that in Euphoria but there would be no speed benefit. I suppose
I could probably write something like that in assembly if I knew (and
understood) how sequences were stored. Either way it seems like, for small
systems at least, avoiding multidemsional sequences is more efficient.
- the Doog
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