Well in those days computers were apparently 1-4Mhz on the server end of things. Doing wireframe perspective matrix transformations quick enough to rotate things in real time was a big deal. I mean… I wasn’t born yet – but the literature clearly indicates there were parties in the streets. LOL
Is this kind-of like a Rickroll?
Who is Edward Lorenz? Well he’s known in scientific circles as the father of chaos theory. Chaos theory explores the relatioships between tiny changes in a dynamic system and the vast impacts these changes can have.
For me this is a somber day as I fondly remember reading about chaos theory in my school library – discovering this theory for the first time.
Edward Lorenz was apparently a humble, kind man who stayed active up until he died of cancer. Ninety years is nothing to sneeze at, either. Living for that long is probably due in part to his lifestyle. I hope I get to live that long in good health, even if that thought is far off for now.
In 1972 he wrote the study, “Predictability: Does the Flap of a Butterfly’s Wings in Brazil Set Off a Tornado in Texas?” His work had impact in all areas of science. It was this theory and it’s implications which drew connections between the various disciplines and shed light on the interactions between these complex systems.
These aren’t default functions but I thought I’d post them:
<?php
function toalphanum( $string ) {
$newstring = "";
for( $i = 0; $i < strlen( $string ); $i++ ) {
if( ( ( $string[$i] >= "A" ) && ( $string[$i] < = "z" ) ) || ( ( $string[$i] >= "0" ) && ( $string[$i] < = "9" ) ) ) {
$newstring[$i] = $string[$i];
} else {
$newstring[$i] = "_";
} // end if
} // end for
return implode( "", $newstring );
} // end toalphanum
function toalpha( $string ) {
$newstring = "";
for( $i = 0; $i < strlen( $string ); $i++ ) {
if( ( $string[$i] >= "A" ) && ( $string[$i] < = "z" ) ) {
$newstring[$i] = $string[$i];
} else {
$newstring[$i] = "_";
} // end if
} // end for
return implode( "", $newstring );
} // end toalpha
?>
Nothing brilliant but I find it useful all over the place.
I’ve put my efforts into too many other things lately and I’ve severely neglected this blog.
I apologize to all two of my readers. Sorry. :3
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