Complex Number Hats
Description: A mathematical equation displayed in a creamy, light color against a black background. The equation reads "√-1 = i (1 – sin θ) / (0 ≤ θ ≤ 2π)", followed by the Greek letter Pi (π). The font is serif and classic.
Square root of -1 equals i times 1 minus sine theta over 0 to 2 pi Pi Hat
by Spectrum StudioArt
$12 $19
Description: A black background with white mathematical equations arranged in a circular pattern resembling a clock face. White clock hands are positioned at the center. Equations include "x² + y² = z²", "lim (1/x)", "∫ e^x dx", "f(x) = mx + c", "d/dx sin(x)", "e^(iπ) + 1 = 0", "log10(100)", "2³ - 1", "√(16+2)", "(3+2)²", "√144", "Σ n/n!", and "π ≈ 3.14159".
Description: A monochrome graphic displaying a mathematical equation. The equation reads 'i i/dt - \Phi = - [waveform with a hat] \epsilon'. The symbols are stylized with a clean, white outline on a black background, including a waveform with a fedora-like hat placed above it and the Greek letter epsilon at the end.
i i/dt - \Phi = - [Waveform with Hat] \epsilon Hat
by studiobogares
$12 $19
Description: Perfect math humor for mathematicians, math teachers, and math students. This design features the witty text: √-4=2 It's All Fun And Games Until Someone Loses An I.
√-4=2 It's All Fun And Games Until Someone Loses An I Math Humor Mathematician Gift Hat
by It's Over
$12 $19
Description: A black background displays text at the top stating 'THE MANDELBROT SET' in a distressed yellow font, followed by the mathematical formula 'Zn+1 = Z^2n + c' in a matching style. To the right, a colorful fractal shape in shades of orange, yellow, and red against the black background.