“The total number of multiplications involved in the practical solution of our problem exceeds 450,000. This task alone would mean a two-year job, at 120 multiplications per hour. Fortunately, the recent invention of the Simultaneous Calculator by Professor Wilbur of the Massachusetts Institute of Technology has made it possible to perform all the necessary computations in a small fraction of the time they otherwise would have required. This apparatus solves nearly automatically a system of nine simultaneous linear equations.”

— Wassily Leontief

Source: Structure of American economy, 1919-1929, 1941, p. 74.

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Wassily Leontief 10

Russian economist 1906–1999

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Source: prevale.net

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Wassily Leontief 10

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