📚 noun • entry_id 59403
differential operator
Meanings (ES + gloss)
operador diferencial
An operator defined as a function of the differentiation operator (the operator which maps functions to their derivatives).
Define P(D) to be the differential operator given by P(D)#61;D²#43;5D#43;6, where D is the differentiation operator. Then P(D)(#92;sin(x))#61;-#92;sin(x)#43;5#92;cos(x)#43;6.
[…]these conditions appeared in the very first papers on ordinary differential operators.
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