Math 123 (Fall 2017)

This website will contain all course material for the Fall 2017 section of “Math 123: Differential Equations and Linear Algebra” as taught by Matthew D. Johnston at San Jose State University.

Green sheet:

Lectures:

  • TuTh 1:30-2:45 p.m., location: Sci 142

Instructor Office Hours:

  • M: 12:00 – 1:30 p.m.
  • T: 10:30 a.m. – 12:00 p.m.
  • W: 10:30 a.m. – 12:00 p.m.

Textbook:

  • G. Peterson and J. Sochacki, Linear Algebra and Differential Equations, Addison-Wesley, 2002. (suggested)

Grade Breakdown:

  • WebAssign Homework: 20%
  • Term Tests: 20% (x two)
  • Final Exam: 40%

Piazza Course Discussion:

Computer Code:

WebAssign Homework:

Term Tests:

  • October 5 (in class)
  • November 14 (in class)

Final Exam

  • Tuesday, December 19, 12:15-2:30 p.m. in Sci 142

Lectures (click link for lecture notes)

  • Aug. 24 – First-Order Differential Equations
  • Aug. 29 – Slope Fields, IVPs
  • Aug. 31 – Separable DEs
  • Sept. 5 – First-Order Linear DEs
  • Sept. 7 – Substitution Methods
  • Sept. 12 – Applications: Inflow/Outflow Models
  • Sept. 14 – Numerical Methods: Forward Euler and Runge-Kutta
  • Sept. 19 – Second-Order Differential Equations
  • Sept. 21 – Method of Undetermined Coefficients
  • Sept. 26 – Modified Trial Form
  • Sept. 28 – Harmonic Motion, Resonance
  • Oct. 3 – Laplace Transforms
  • Oct. 5 – TERM TEST I
  • Oct. 10 – Inverse Laplace Transforms (partial fractions review)
  • Oct. 12 – Initial Value Problems
  • Oct. 17 – Discontinuous forcing functions
  • Oct. 19 – Systems of Linear Equations
  • Oct. 24 – Gaussian Elimination
  • Oct. 26 – Matrix Operations
  • Oct. 31 – Inverses, Determinants
  • Nov. 2 – Cramer’s Rule, Adjugates
  • Nov. 7 – Vector Spaces, Spanning Sets
  • Nov. 9 – Linear Independence, Basis
  • Nov. 14 – TERM TEST II
  • Nov. 16 – Matrix Spaces
  • Nov. 21 – Eigenvalues/vectors (real, distinct & real)
  • Nov. 23 – THANKSGIVING!
  • Nov. 28 – Eigenvalues/vectors (complex)
  • Nov. 30 – Systems of DEs (real, distinct & real)
  • Dec. 5 – Systems of DEs (complex)
  • Dec. 7 –  FINAL EXAM REVIEW!
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