Peeter Joot's math and physics play
I am a software developer and math and physics enthusiast.
I have about 25 years software development experience. I have been working at LzLabs since 2016, where I am responsible for COBOL and PL/I compiler runtime development and compiler integration, and legacy C370 runtime implementation.
Before LzLabs, I worked for IBM for close to 20 years, working on the lowest level guts of DB2 LUW. I spend too much of my free time, when I can find it, enjoying recreational mathematics, physics and engineering studies.
The focus of this channel is math and physics. I've now posted introductory videos on geometric algebra, and Green's functions.
At http://peeterjoot.com/ you can find my book on geometric algebra applications to electromagnetism, free pdfs of class notes for many of the physics and engineering courses that I have taken, and my musings about math, physics, programming, and other random topics that have caught my interest.
Walnut box for arxiv paper printouts.
Three walnut boxes with mitred corners finished and waxed.
First mitered corner walnut box build is done.
Dovetail boxes are now done (and gorgeous)
Walnut, magnet latched knife sheath.
Tour of my newly organized workshop/shed.
Router table build is done!
Progress on router table 2.0
Cross cut sled for my DeWalt DWE7485 (job site) table saw.
Maxwell's equation in geometric algebra
Geometric algebra, exact and least squares solutions of two variable linear system
From Newton's gravitational law to orbital motion, with geometric algebra
Radial velocity and angular momentum, with geometric algebra
Spherical basis vectors in geometric algebra
Geometric algebra: a very short introduction.
Circular velocity and acceleration with geometric algebra
Projection and rejection with geometric algebra
Reciprocal vectors: Gradient and matrix representations
Reciprocal vectors: Examples.
Reciprocal Frame Vectors: 2D derivation, and GA equivalent
Relativistic curvilinear coordinate examples
Introduction to curvilinear coordinates and reciprocal frame vectors
Verifying the Laplacian Green's function
Green's function for the Laplacian
Differential forms (representations of Maxwell's equations, part IV)
Gauge freedom and the Tensor formulation of Maxwell's equations (Maxwell's equations: part III).
Maxwell's equation in STA (space time algebra). Representations of Maxwell's equations: Part II.
Maxwell's equations: from vector algebra to geometric algebra. Maxwell representations, part I.
Proper time, velocity, momentum, and invariants in STA (Geometric algebra's Space Time Algebra)
Green's function boundary value conditions