Numerical Solution
It is worth noting that Integral Equations often do not have an analytical solution, and must be solved numerically. An example of this is evaluating the EFIE or MFIE equations over an arbitrarily shaped object in an electromagnetic scattering problem.
One method to solve numerically requires discretizing variables and replacing integral by a quadrature rule
for . Then we have a equations and variables system. By solving it we get the value of the variables .
Read more about this topic: Integral Equation
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