hmm
i was thinking about
f(x) - f[-1](x) = 2*sinh(ln(b)*x).
for approximating (b^x)^[theta] for bases b with eta < b < sqrt(e) and x > e^e.
i was thinking about
f(x) - f[-1](x) = 2*sinh(ln(b)*x).
for approximating (b^x)^[theta] for bases b with eta < b < sqrt(e) and x > e^e.

