Hi people, I was printing the result of a simple arithmetic operation by Response.Write(300.2 - 300.1). Instead of giving me 0.1 as the result, it turned out to be 0.0999999999999659. Can anyone tell me why this is so? Any help will be very much appreciated.

with the reference of Mr.Chris post.

This should do the trick (just pass it your float & the number of decimal places you want)...

function FormatFloat(pFloat, pDp){
    var m = Math.pow(10, pDp);
    return parseInt(pFloat * m, 10) / m;
}

regards,