Hierarchical Matrices Method and Its Application in Electromagnetic Integral Equations

<table>Memory usage complexity of hierarchical <svg height="16.3125" id="M227" style="vertical-align:-0.0pt" version="1.1" viewbox="0 0 26.375 16.3125" width="26.375" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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International Journal of Antennas and Propagation

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Figure 11

Figure 11: Hierarchical Matrices Method and Its Application in Electromagnetic Integral Equations 