An essay towards the calculus of functions
$3,000 · Offered by Manhattan Rare Books
“It can be said with some assurance that no mathematician prior to Babbage had treated the calculus of functions in such a systematic way ... Babbage must be given full credit as the inventor of a distinct and important branch of mathematics” Dubbey . My subsequent inquiries have produced several new methods of solving functional equations containing only one variable quantity and much more complicated, and have convinced me of the importance of the
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