We defined `zero of order m' and used it to relate to `pole of order m'
for a quotient of functions. The latter was then used to compute
residues. We discussed a theorem that appears in 2 places in
the book, without a full proof, concerning consequences when
a function has the value zero along a curve. We gave a proof
with more restrictive conditions. We gave arguments classifying
isolated singularities z_o of f(z) based on the degree to which |f(z)|
remains bounded near z_o.

HW: section 76