Braeden Sweder

Braeden Sweder

Finding the geometry behind the algebra

One of my favorite things about mathematics is when two ideas that look completely different turn out to be connected. Cubic equations, for example, can be approached with algebra, trigonometry, and even a rotating equilateral triangle.

Here I’ve collected some of those mathematical investigations, the book I’m writing, and a few other projects.

Unit-circle geometry, a cubic curve, and a subdivided cube

The same mathematics can have more than one picture.

Selected work

A geometric construction that completes a cube by assembling colored volumes

MATHEMATICAL RESEARCH

Completing the Square in 3D

What happens if we try to extend completing the square into three dimensions? I explored cubic equations using the volumes of pieces that fit together into a larger cube.

Explore this research →

A trigonometric construction with a circle, tangent line, and labeled geometric relationships

THE BEAUTY OF MATHEMATICS

The Beauty of Mathematics

An illustrated exploration of the connections between algebra, geometry, trigonometry, and complex numbers.

Read the complete book →

Other mathematical investigations

An equilateral triangle inscribed in a circle above a cubic curve

Solving Cubic Equations Using a Triangle

A rotating equilateral triangle provides a geometric view of the real roots of a cubic equation.

Explore the triangle →

A tetrahedral construction connected to a quartic polynomial

The Geometry of Polynomials

An ongoing investigation of the shapes that appear when polynomial equations are viewed geometrically.

See the investigation →