Take a Tour of Wolfram|Alpha

What is Wolfram|Alpha?

Wolfram|Alpha computes answers and provides knowledge.

Wolfram|Alpha is an engine for computing answers and providing knowledge.

It works by using its vast store of expert-level knowledge and algorithms to automatically answer questions, do analysis, and generate reports.

Wolfram|Alpha's long-term goal is to make all the world's knowledge systematically computable and accessible.

Video Introduction:
Wolfram|Alpha in a nutshell

Wolfram|Alpha is a computational knowledge engine, not a search engine.

WOLFRAM|ALPHA uses built-in
knowledge
curated by human
experts
to compute on the fly a
specific answer and analysis for
every query.

SEARCH ENGINES index web
pages,
then look for textual matches,
then give you lists of links to follow.


 
1, 'message' => "No video id supplied" )); } $id=intval($_GET['v']); if(isset($_GET['share'])) $show_share=($_GET['share']=='true' ? true : false); else $show_share=false; $data = $mysql->get_one_vid($id); // If not set, use the defaults from settings.php $frame_w = (isset($_GET['width']) ? intval($_GET['width']) : default_vid_width); $frame_h = (isset($_GET['height']) ? intval($_GET['height']) : default_vid_height); if(is_array($data)) { foreach($data as $key => $value) $clean[$key] = $data[$key]; $vid=intval($data['vimeo_id']); // if they were set, but set to 0, then use the full width $frame_w = ($frame_w==0 ? $clean['video_width'] : $frame_w); $frame_h = ($frame_h==0 ? $clean['video_height'] : $frame_h); if(isset($_GET['id'])) { $id = crypt($_GET['id'],'wa'); // Hopefully ruins code injection on this var. } echo $util->embed_code($vid,$frame_w,$frame_h,$show_share,$id); } } // We really don't care about exception type here. We either could get the video or we couldn't. // This means that both the db connect and query are in the one try statement. catch(Wri_Db_Exception $e) { $id=0; $db_error = array( 'msg' => "Video Database Error (".$e->getCode().") : ".$e->getMessage(), 'fatal' => True ); $frame_w = (isset($_GET['width']) ? $_GET['width'] : default_vid_width); $frame_h = (isset($_GET['height']) ? $_GET['height'] : default_vid_height); echo $db_error['msg']; //echo $util->embed_code(0,$frame_w,$frame_h); //echo $util->embed_code(0,$frame_w, $frame_h); // This displays the vimeo error video. I guess that's ok... } ?>