illustrations for RH book
%load code.sage
show(symbolic_cos_theta(100))
g = plot(symbolic_cos_theta(100), 0, 40)
%time g = plot_symbolic_cos_theta(100, 0, 40)
g
g = symbolic_cos_theta(1000) t = var('t') h = g(t=log(t)) %time plot(h, 5, 40)