$^a$ fff $$ A = B \cross C $$
$$ f(x) = \int_{-\infty}^\infty\hat f(\xi)\,e^{2 \pi i \xi x}\,d\xi $$
$A=B*C$
@startuml
Alice -> Bob: Hello
Bob --> Alice: Hi there
@enduml$^a$ fff $$ A = B \cross C $$
$$ f(x) = \int_{-\infty}^\infty\hat f(\xi)\,e^{2 \pi i \xi x}\,d\xi $$
$A=B*C$
@startuml
Alice -> Bob: Hello
Bob --> Alice: Hi there
@enduml
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