Summary of Operator Facts and Terminology from Linear Algebra Done Right.

Rotation

Partial Fractions Expansion.

Equations of motion for a chain of point masses.

Integrability of vector fields.

The Serret-Frenet Triad.

Trapezoidal Rule Error derivation, (even powers of h).

Polynomial Interpolation Error Formulas, Proof Outlines, and notes on Constructing the Interpolating Polynomials.

my solution to a math quiz, as well as a concept from my approach to the second part of problem 1.

least squares notes, examples, and comments.

natural cubic splines, (a clean but artless derivation).

convergence rates of sequences, including why the secant method converges with order (1+sqrt(5))/2.

significant digits in fixed point iterations.

accelerating the convergence of fixed point iterations.