g.view({cartesian:true})
 .chart({ x:35,y:35,b:200,h:100,
          title:{ text:"sin(φ)"},
          xmin:-Math.PI/2, xmax:2*Math.PI,
          funcs:[
            { fn:Math.sin,
              dx:Math.PI/30,
              fill:true
            }
          ],
          xaxis: {
            title:"φ",
            grid:true,
            ticks:{len:8}
          },
          yaxis: {
            title:"sin(φ)",
            origin:true,
            line:false
          }
       })
 .exe(ctx);