10,000 square metres = 1 hectare<br><br><br>
You could do this using Javascript.1) create a textfield2) create a submit button3) define two Javascript variables: a running tally, and a click-counter4) give the button an onclick event that calls a function that works like this:read the value from the text fieldconvert it to a numeric valueif that value is 0 {if the counter != 0 {display the tally and the average (which equals tally over counter)}else{either display an error message, or 0 as both the tally and average - to your taste.}reset both the tally and the counter to 0}else{add the value to the tallyincrement the counter by 1}And here's a working example of how to do it:span.buttonClass{background-color: #C8C8C8;padding: 4px;border-width: 2px;border-style: outset;font-weight: bold;}The Summinator!var tally = 0, counter = 0;function addValue(){var textfield = document.getElementById("addVal");var avgfield = document.getElementById("avgfield");var sumfield = document.getElementById("sumfield");var num = parseFloat(textfield.value);var sum, avg;textfield.value = '';if(isNaN(num)){ // make sure they entered a numberalert("Please enter a numeric value.");}else{if(num != 0){tally += num;counter ++;sumfield.textContent = "";avgfield.textContent = "";}else{if(counter == 0){sum = avg = 0;}else{sum = tally;avg = tally / counter;}sumfield.innerHTML = "The sum is " + sum;avgfield.innerHTML = "The average is " + avg;tally = counter = 0;}}}Add ValueYou can even make it a little nicer by having it output the sum and average each time a number is entered, rather than waiting for the zero input (which would still reset things). That actually simplifies the code too, and would look like this:...if(isNaN(num)){ // make sure they entered a numberalert("Please enter a numeric value.");}else{if(num != 0){tally += num;counter ++;sum = tally;avg = tally / counter;}else{sum = avg = tally = counter = 0;}sumfield.innerHTML = "The sum is " + sum;avgfield.innerHTML = "The average is " + avg;}...
the number zero is first used by Indians only not by any one else<br /><br /><br /><br /> The number zero was actually invented by the <i><b>Ancient Egyptians
Br means Mist... in spanish i guess Br comes from Bruma, a kind of Mist. Fg is Fog, Fu is Smoke (from "fumarola" in spanish as well)
yes, across the Br-C-Br/H-C-H planes.
Br-80 has 35 protons.
The atomic number of Br is 35.
To be neutral, Bromine (atomic symbol Br) has 35 electrons. Ions have more or less.
There are 35 protons in bromine-80 (Br-80). This is because bromine has an atomic number of 35, which corresponds to the number of protons in its nucleus.
The element in the group of MgO, Br, LiF, and PbO is Br (Bromine).
Br on the periodic table stands for Bromine. It is a nonmetallic element in group 17 with atomic number 35. Bromine is a reddish-brown liquid at room temperature and is commonly used in flame retardants and pharmaceuticals.
(Br) with atomic no 35
Bromine(Br) has a charge of +35 on its nucleus
The number 35 above Br represents its atomic number. It is also equal to number of protons in Bromine.
35 protons, 36 electrons
Bromine (Br) has 35 electrons and 35 protons. This is because the atomic number of bromine is 35, which corresponds to the number of protons in its nucleus and the number of electrons in a neutral atom.
The atomic number of bromine (Br) is 35.The atomic weight of Br is 79.904 grams per mole.Bromine is a diatomic molecule, Br2See the Web Links to the left of this answer for a periodic table with more information about this element!