This paper deals with computer algebra systems and explains how these
systems are likely to be extremely relevant in addressing electromagne
tic problems. After it historical survey, it discusses the various off
-the-shelf systems and their features. We suggest how given problems c
an be formalized and analysed using symbolic algebra systems. Several
applied examples are given, with an important bibliography. We study t
he flat and conformal microstrip antennas : Green's functions, solutio
ns of the characteristic equations, and so on. We give many informatio
ns on the computer algebra systems on the Internet network.