3 ms·
Lazy square roots of power series (2007)
- civilized 4y agoYou could do all that, or you could just collect like powers on one side and set the collected coefficients equal to zero, like a mathematician would.
- onos 4y agoI can’t understand how this is used. Eg his expression for r_t in the inverse at the start. How would you use this in a program to get the inverse? Guess just pointing out that you can iteratively find one coefficient at a time. Also the differential Eqn looks integrable.
- selimthegrim 4y agoIt is, see his linked posts
- selimthegrim 4y agoWell I guess it depends on your definition of elementary.
- onos 4y agoAh btw this eqn is just the energy conservation equation for a spring.