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McRat
01-09-2009, 07:48 PM
This is a simple calculator written in BASIC for drag racing.
Can anyone translate this to PHP or point me to a good tutorial?

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CONST Loss = .75 'Drivetrain loss
CONST Ex = .33333333 'cubic curve exponent
CONST ETconstant = 5.825 'corrects units and adjusts
CONST MPHconstant = 234 'corrects units and adjusts

INPUT "What is your raceweight"; lbs 'get keyboard input
INPUT "What is your rear wheel HP"; rwhp 'get keyboard input

hp = rwhp / loss 'calculate new hp variable

PRINT "Estimated ET is: "; (lbs/hp)^Ex * ETconstant 'Calc
PRINT "Estimated MPH is: "; (hp/lbs)^Ex * MPHconstant 'Calc

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Then I need to figure out how to imbed it in our vB board in our drag race forum.
Adrian Schneider
01-09-2009, 11:13 PM
In a web environment, you can't really replicate that directly. In a command line environment, you could. You'd need a HTML form that takes in the data, and then process the rest of it on the server.

For simplicity's sake, I'd look at just doing it in JavaScript unless you actually need to store these results.
McRat
01-10-2009, 12:00 AM
Thanks!
glaive
01-10-2009, 08:17 AM
I didn't test it, but I would imagine this does the trick or at least gets you on your way.


<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">
<head>
<meta http-equiv="Content-Language" content="EN" />
<meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
<meta http-equiv="Content-Style-Type" content="text/css" />
<title>Test Page</title>
<script type="text/javascript">
<!--
function calcStuff() {
var Loss = .75; //Drivetrain loss
var Ex = .33333333; //cubic curve exponent
var ETconstant = 5.825; //corrects units and adjusts
var MPHconstant = 234; //corrects units and adjusts
var csd, hp, est;
var lbs = getElementById("lbs").value;
var rwhp = getElementById("rwhp").value;
hp = rwhp / loss; //calculate new hp variable
est = ""
+"<span>Estimated ET is: "+(Math.pow((lbs/hp),Ex) * ETconstant)+"<br />"
+"<span>Estimated ET is: "+(Math.pow((hp/lbs),Ex) * MPHconstant);
if ( document.all ) { csd = document.all.results; }
else { csd = document.getElementById("results"); }
csd.innerHTML=est;
}
-->
</script>
</head>
<body>
<div>
<span>What is your raceweight?</span> <input id="lbs" type="text" value="" /><br />
<span>What is your rear wheel HP?</span> <input id="rwhp" type="text" value="" /><br />
<input type="button" value="Submit" onclick="calcStuff();" />
</div>
<div id="results"></div>
</body>
</html>
McRat
01-13-2009, 06:03 PM
Thanks!