Translations:Convolution - book/35/en

${\begin{aligned}{\begin{array}{*{20}c}{\begin{array}{l}\\\left.{\begin{array}{l}a_{0}\\a_{1}\\\end{array}}\right|\\\end{array}}&{\begin{array}{l}{\underline {b_{0}\;\;\;\;\;\;\;\;b_{1\;\;\;\;\;\;\;}}}\\a_{0}\;b_{0}\;\;\;\;a_{0}\;b_{1}\\a_{1}\;b_{0}\;\;\;\;\;a_{1}\;b_{1}\;\\\end{array}}\\\end{array}}\;{\rm {or}}\;\;{\begin{array}{*{20}c}{\begin{array}{l}\\\left.{\begin{array}{l}2\\1\\\end{array}}\right|\\\end{array}}&{\begin{array}{l}{\underline {3\;\;\;\;\;\;\;\;\;4\;}}\\6\;\;\;\;\;\;\;\;\;8\\3\;\;\;\;\;\;\;\;\;4\\\end{array}}\\\end{array}}.\end{aligned}}$

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