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Computational-Science-and-Engineering

18.085 Gilbert Strang Computational Science and Engineering

Paper+pen solutions and Julia code

Chapter 1. Applied Linear Algebra

1. Four Special Matrices

Solutions

2. Differential Equations and Difference Equations

Solutions

3. Solving a linear system

Solutions

4. Delta Function

Solutions

5. Eigenvalues and Eigenvectors

Solutions

6. Positive Definite Matrices

Solutions

7. Numerical Linear Algebra

Solutions

Chapter 2. Framework for applied math

1. Equlibrium and the stiffness matrix

Solutions

3. Least squares for rectangular matrix

Notes + Solutions

4. Graph models and Kirchhoff's Laws

Notes + Solutions

Exam 1

Exam solutions

5. Networks and transfer function

Solutions

Chapter 3. Boundary value problem

1. Differential equations and finite elements

Solutions

2. Cubic Splines and Fourth Order Equations

Solutions

3. GradientAndDivergence

Solutions

4. LaplacesEquation

Solutions

Exam 2

Solutions

Chapter 4. Fourier Series and Integrals

1.FourierSeriesForPeriodicFunctions

Solutions

2.ChebyshevLegendreAndBessel

Solutions

3.DiscretFourierTransformAndTheFFT

Solutions

4.ConvolutionAndSignalProcessing

Solutions

5.FourierIntegrals

Solutions

Final Exam (2007 solutions)

Solutions

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