javascript - Form help: input - output for math function -


i need help. need javascript code following function:

n = 1 + (log(5156559813)/log(x))/log(3)

where n output , x input box.

how make input box x? use document.getelementbyid("x").innerhtml = 1 + (math.log(5156559813) / math.log(x)) / math.log(3)?

i've searched wrong thing keeps coming every time.

here's code:

<form class="uk-form">   <fieldset data-uk-margin>    <input type="text" placeholder="people in group" id="x">    <button class="uk-button uk-button-primary">go!</button>    <p id="number"></p>   </fieldset>   <script type="text/javascript">   function n(x){    return document.getelementbyid("number").innerhtml = 1 + (9.7123600597) / math.log(x)) / 0.4771212547;     document.getelementbyid('x').addeventlistener('change', function () {     document.getelementbyid('n').innerhtml = n(this.value);    }, false);    }   </script>   </form>

whenever hit button, page refreshes , @ beginning again.

thank much!

use math.log() base e, math.log10() base 10 , math.log2() base 2. note log10 , log2 not supported on internet explorer


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