Not sure about more intuitive, but if you want a faster way of computing the points of the arc, using mostly rational arithmetic rather than trig functions, tak

Not sure about more intuitive, but if you want a faster way of computing the points of the arc, using mostly rational arithmetic rather than trig functions, take a look at https://observablehq.com/@jrus/svg-elliptical-arcs https://observablehq.com/@jrus/svg-elliptical-arcs