The meromorphic solution w, with initial value 1, of the equation zww" + ww' − zw'² = a − bw⁴
can be written p/q. p, p' and p" are in the top row, q. q', and q" in the bottom. The corners of the square are at ±10 ± 10i.
Multiplying the parameters by a factor essentially multiplies the scale. Hit refresh to enter new parameters or if an error occurs.