5. Laplace Transform of Derivatives
The Laplace Transform serves as a crucial tool for solving differential equations, converting them into algebraic equations for easier manipulation. This chapter explains the Laplace Transform of derivatives and provides the essential formulas for first and higher-order derivatives. The application of these transforms to solve differential equations, particularly in Initial Value Problems (IVPs) in engineering contexts, is also highlighted.
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What we have learnt
- The Laplace Transform of derivatives allows for the conversion of differentiation into algebraic terms.
- The key formulas for the Laplace Transform of first, second, and n-th derivatives are significant for solving differential equations.
- Laplace Transforms are widely applied in fields like engineering for solving control systems, circuits, and mechanics.
Key Concepts
- -- Laplace Transform
- A mathematical transformation that converts a function of time into a function of a complex variable, simplifying the process of solving differential equations.
- -- First Derivative Transform
- The formula L{f'(t)} = sF(s) - f(0), which relates the Laplace Transform of a function's derivative to the Laplace Transform of the function itself.
- -- nth Derivative Transform
- The general formula for the Laplace Transform of the n-th derivative, L{f^(n)(t)} = s^nF(s) - sum_{k=0}^{n-1} (s^(n-1-k)f^(k)(0)), expressing the transform in terms of the original function's values at zero.
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