PHP/Javascript/HTML Math help?

Use JavaScript. It'll be the fastest and most efficient way of doing this.

HTML does not have math capabilities, anyway.

PHP for sure i assume for E,F,A,B and CD or C & D you want separate values. In PHP this is easy.

example:

<?php

$E = '55'; // this is the method to mannually define the value you wish to use for $E

$F = $_POST['Fvalue']; // this is getting its value from a text field with the name "Fvalue"

// and so on.. do the same for the rest

//Now for the calculation

// using echo we will display the calculation straight away

echo ('($E - $F) + ($A + $b) / 2 * $CD / 10000');

echo ('($E - $F) + ($A + $b) / 2 * ($C * $D) / 10000'); // or if C and D are separate.

?>

<input type="text" name="Fvalue"> Hope this helped

... you will have to make a submit form and tweak this code allot.. was just a rough idea of what you will have to do.

Javascript is a perfectly good way to do this.

Here's the HTML:

<p>A: <input type="text" id="input_A" value="0"></p>

<p>B: <input type="text" id="input_B" value="0"></p>

<p>C: <input type="text" id="input_C" value="0"></p>

<p>D: <input type="text" id="input_D" value="0"></p>

<p>E: <input type="text" id="input_E" value="0"></p>

<p>F: <input type="text" id="input_F" value="0"></p>

<p><input type="button" value="Compute" onclick="go()"></p>

<a id="output"></a>

Here's the Javascript (with tags):

<script type="text/javascript">

function getinput(ind)

{

return( parseFloat( document.getElementById( "input_"+ind ).value ) );

}

function go()

{

var A=getinput("A");

var B=getinput("B");

var C=getinput("C");

var D=getinput("D");

var E=getinput("E");

var F=getinput("F");

var ans = ((E-F) + ((A + B) * 0.5)) * C * D * 0.0001;

document.getElementById( "output" ).innerHTML = "<p>"+ans+"</p>";

}

</script>

Since your formula didn't make the order of operations clear, I have used the most natural interpretation given the positions of the constants in the formula. Also note that Javascript performs floating-point math and the answer may not be quite precise (for instance, 0.0001 cannot be represented precisely, so a value very close to it will be used instead). It should be close enough for your purposes though.

HTML is not a programming language, so it can not calculate any math expression.

you need Javascript which interfaced by HTML to display a form

here is the code : http://www.learn-javascript-tutorial.com/FormValid...

Eh... Neither... But i guess i'll select English. I used to love English more but excessive school made it boring. -_- however I nonetheless love writing as a passion (and hate math, even though i'm not bad at it) so i'll simply say English.

PHP:

(E-F) + (A+b)/2 * (C*D) / 10000

I'm not sure if that works, try it. If it doesn't work then refine it. Research so you'll learn something.

Hope this helps :)

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