var d3 = require(“../../”);
var formatNumber = d3.format(“,.02r”),
o = d3.geo.circle().angle(30).precision(.1)(), n = 1e3, then = Date.now();
for (var i = 0; i < n; i++) {
d3.geo.area(o);
}
console.log(“circle.angle(30°): ” + formatNumber((Date.now() - then) / i) + “ms/op.”);