| name | mfe-perception |
| description | Foundational measurements and relationships. The axioms of the system — numbers, distance, angles, and the geometry of seeing. |
| user-invocable | false |
| allowed-tools | Read Grep Glob |
| metadata | {"extensions":{"gsd-skill-creator":{"version":1,"createdAt":"2026-02-26","triggers":{"intents":["number","count","distance","magnitude","circle","trigonometric","angle","inner product","orthogonal"],"contexts":["mathematical problem solving","math reasoning"]}}}} |
Perception
Summary
Perception (Part I: Seeing)
Chapters: 1, 2, 3
Plane Position: (-0.2, 0.2) radius 0.4
Primitives: 43
Foundational measurements and relationships. The axioms of the system — numbers, distance, angles, and the geometry of seeing.
Key Concepts: Sine Function, Cosine Function, Real Numbers, Unit Circle, Inner Product (Dot Product)
Key Primitives
Sine Function (definition): The sine function sin: R -> [-1,1] is defined as the y-coordinate of the point on the unit circle at angle theta from the positive x-axis. It is periodic with period 2*pi, odd: sin(-theta) = -sin(theta).
- computing vertical components of circular or oscillatory motion
- modeling periodic phenomena like waves and vibrations
