Some other test

test.juttle

var $now = Date.now();
var pi = Math.PI;
function sinc(x) => (x==0)?1:Math.sin(pi*x)/(pi*x);
proc source(start, end, step) {
    var N = (end - start) / step, HZ = 1 / step;
    emitter -hz HZ -limit N -start (start*1000) -reset 1 } 
source(-5,5,0.1) | put x=time/1000, y=(sinc(3*x)+1)*10
    -> timechart -duration 10 -columns y

thumbnail.png