## The elementary theory of operational mathematics |

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algebraic appendage applied arbitrary constants Bessel equation Boole calculus Charles Graves cofactors Cohen commutative complementary functions constant coefficients cosh Cramer's rule derivation descending powers determinant elementary equations with constant Examples expanded F(di factor force Forsythe fundamental theorems George Boole gives Heaviside homogeneous homogeneous function identity illustrate Ince independent variable infinite series interpretation inverse operations iterated Lamb Leibnitz linear differential equations linear operators Mason's theorem mathematical matrix minors Multiply nonhomogeneous obtain Oliver Heaviside operational form OPERATIONAL MATHEMATICS operational method Operations on Zero ordinary linear differential partial fractions particular integral Piaggio polynomial rank rational integral function respect result row column simple simplified solution solve student substitution symbols of operation Taylor's theorem terminal conditions theory tion transformations values velocity Whittaker and Watson x'yi