Trigonometric Circle Hoodies
Description: A detailed scientific illustration of a circle of radius R with a highlighted chord and central angle θ, ringed by stars, above the chord formula crd θ = 2R sin(θ/2), set against a deep dark background. Hipparchus of Nicaea (c. 190–120 BC) compiled the first known table of chords, the ancestor of the sine function. He also made one of the first star catalogues and discovered the precession of the equinoxes. A gift idea for mathematicians, math teachers and engineers, and a quiet statement piece for a study, classroom or office wall.
Hipparchus Table of Chords, the Origins of Trigonometry and the Sine Function Hoodie
by Science Design
$32 $42
Description: This striking math-inspired design illustrates how the elegant rotation of the unit circle transforms into the smooth curve of the sine wave revealing the connection between circular motion and trigonometric functions. Perfect for math teachers, students, STEM lovers, and anyone who appreciates the beauty where geometry meets waves. Reflective. Playful. Poetic.
