Signal-flow graph: Difference between revisions

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== History ==
Wai-Kai Chen wrote: "The concept of a signal-flow graph was originally worked out by [[Claude Shannon|Shannon]] [1942]<ref name=Shannon>
{{cite journalreport |author =CE Shannon |title=The theory and design of linear differential equation machines |date=January 1942 |publisher=Fire Control of the US National Defense Research Committee: Report 411, Section D-2}} Reprinted in {{cite book |title=Claude E. Shannon: Collected Papers |editor1=N. J. A. Sloane |editor2=Aaron D. Wyner |publisher=Wiley IEEE Press |year=1993 |page=514 |isbn=978-0-7803-0434-5 |url=https://books.google.com/books?id=wbLuAAAAMAAJ&q=Theory+and+Design+of+Linear+Differential+Equation+Machines.}}
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in dealing with analog computers. The greatest credit for the formulation of signal-flow graphs is normally extended to [[Samuel Jefferson Mason|Mason]] [1953],<ref name=Mason>