design+data+people nerd ❦ previously partner at IDEO, co-founded Datascope
cadd = function cadd([x0, y0], [x1, y1]) {
return [x0 + x1, y0 + y1]; }
csub = function csub([x0, y0], [x1, y1]) {
return [x0 - x1, y0 - y1]; }
cmul = function cmul([x0, y0], [x1, y1]) {
return [x0*x1 - y0*y1, x0*y1 + y0*x1]; }
conj = function conj([x, y]){
return [x, -y]; }
cinv = function cinv([x, y]) {
const scale = 1 / (x*x + y*y);
return [scale * x, -scale * y]; }
cdiv = function cdiv(z0, z1) {
return cmul(z0, cinv(z1)); }
clerp = function clerp([x0, y0], [x1, y1], t) {
return [x0 * (1 - t) + x1 * t, y0 * (1 - t) + y1 * t]; }
imag = function imag([x, y]) {
return y; }
real = function real([x, y]) {
return x; }
clog = function clog([x, y]) {
return [0.5*Math.log(x*x + y*y), Math.atan2(y, x)]; }
cexp = function cexp([x, y]) {
const scale = Math.exp(x);
return [scale * Math.cos(y), scale * Math.sin(y)]; }
ccos = function ccos([x, y]) {
return [Math.cos(x) * Math.cosh(y), -Math.sin(x) * Math.sinh(y)]; }
csin = function ccos([x, y]) {
return [Math.sin(x) * Math.cosh(y), Math.cos(x) * Math.sinh(y)]; }
cpow = function cpow(z1, z2) {
return cexp(cmul(clog(z1), z2)); }
cabs = function cabs([x, y]) {
return Math.sqrt(x*x + y*y); }
phase = function phase([x, y]) {
return Math.atan2(y, x); }
One platform to build and deploy the best data apps
Experiment and prototype by building visualizations in live JavaScript notebooks. Collaborate with your team and decide which concepts to build out.
Use Observable Framework to build data apps locally. Use data loaders to build in any language or library, including Python, SQL, and R.
Seamlessly deploy to Observable. Test before you ship, use automatic deploy-on-commit, and ensure your projects are always up-to-date.