Question about phi^(-1)

[Dbgsaoge]

Hi, I have noticed that you implemented the inverse phi by adding -1 in the list of scale in your code, but i found that the resulf of the g.heat(tau=[-1]) was not equal to the g.inverse() on account of the definition of the g.Heat(), cause the kernel was defined as np.minimum(np.exp(-scale * x / G.lmax), 1), and it would return 1 in this case, so maybe i get a normal line instead of the actual inverse of filter g.