html, body, #container {

    width: 100%;

    height: 100%;

    margin: 0;

    padding: 0;

}

anychart.onDocumentReady(function() {

    // create chart

    var chart = anychart.surface()

    // set data

    chart.data(generateData(formula));

​

    // hide the last label in Y axis

    chart.yAxis().drawLastLabel(false);

​

    // display chart

    chart.container('container').draw();

});

​

// generate a data set from function

var generateData = function(z) {

    var max = 2;

    var step = 0.2;

    var result = [];

    for (var x = -max; x <= max; x += step) {

        for (var y = -max; y <= max; y += step) {

            result.push([x, y, z(x, y)]);

        }

    }

    return result;

};

// set up a formula function

var formula = function(x, y) {

    return Math.exp(-Math.pow(x, 2) - Math.pow(y, 2))*y;

};