In the following expression:
var('z')
u = function('u')(z)
v = function('v')(z)
f = u + i * v
show(f.diff(z).conjugate().expand().simplify_full())
# conjugate(diff(u(z), z)) - I*conjugate(diff(v(z), z))
I would like Sage to make the simplification conjugate(diff(u(z), z)) = diff(u(z), z) because $u, v$ are intended to be real-valued. But my first attempt:
assume(u, 'real')
didn't work:
TypeError: self (=u(z)) must be a relational expression
What is the right way to write this assumption?
