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ยง 2. Heaviside himself hardly claimed that he had 'proved' his operational method of solving these partial differential equations to be valid. With him ] mathematics was of two kinds: Rigorous and Physical. The former was Narrow: the latter Bold and Broad. And the thing that mattered was that the Bold and Broad Mathematics got the results. "To have to stop to formulate rigorous demonstrations would put a stop to most physico-mathematical enquiries." Only the purist had to be sure of the validity of the processes employed. (en) |
