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Differential Equations

Civil Engineering

First-Order DEs (Separable & Homogeneous)

Introduction to Differential Equations, Initial Value Problems, Variable Separable method, and Homogeneous Differential Equations.

Exact & Linear Differential Equations

Solving First-Order DEs using Exactness, Integrating Factors, and Linear Methods (including Bernoulli's Equation).

Applications of First-Order DEs

Practical applications including population growth, decay, Newton's Law of Cooling, mixing problems, electrical circuits, and falling bodies.

Higher-Order Homogeneous DEs

Solving nth-order linear homogeneous differential equations with constant coefficients and Cauchy-Euler equations.

Higher-Order Non-Homogeneous DEs

Solving non-homogeneous linear differential equations using Undetermined Coefficients and Variation of Parameters.

Applications of Higher-Order DEs

Practical applications in mechanical and electrical systems, including Spring-Mass Systems, Pendulums, and RLC Circuits.

Systems of Differential Equations

Solving systems of linear differential equations using elimination, matrix methods (eigenvalues), and phase portrait analysis.

Laplace Transforms

Solving initial value problems using the Laplace Transform method, partial fraction decomposition, step functions, and Dirac delta.

Series Solutions

Using power series methods, including Radius of Convergence and the Frobenius Method, to solve differential equations with variable coefficients.

Numerical Methods for DEs

Solving differential equations using numerical approximations, including Euler's method, Runge-Kutta methods, and error analysis.

Partial Differential Equations

Introduction to PDEs, classification, Separation of Variables, and solving the Heat, Wave, and Laplace equations.