Function Hats
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 Hat
by Science Design
$12 $19
Description: Almost too emo to function! A cute handdrawn illustrated skull with tears. Text below says "Almost too emo to function."
Almost Too Emo To Function Skull White Text Hat
by Cecelia Hotzler Design
$12 $19
Description: A dark background with lines of computer code. Key phrases include "const displayElement =", "let userCount = 1024;", "function processData(input)", "// abstract digital representation", "return input.toUpperCase();", and "processData('Vector Art');". The code is displayed in a monospaced font with different colors for keywords and strings.
Description: A graphic against a black backdrop featuring a white isometric representation of a computer keyboard key. The key is labeled with "Ctrl" in bold black text. Arched above the key in a semi-circle are the words "EVERYTHING IS UNDER" in white lettering.
Everything Is Under Ctrl Isometric Button Hat
by Remisova illustrator
$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".
The function of socialism is to raise suffering to a higher level. Hat
by CultureWars
$12 $19
Description: A dark-themed visual representation of programming code with line numbers on the left. At the center, highlighted in white bold text, reads 'It worked on my local'. The code contains various function calls, variable declarations, and comments, with some lines displaying subtle orange and yellow gradients.
Description: Are you an anti socialist? Oppose communism? This funny Stalin design is for you. Socialism and communism has failed every time. Educate the people of Soviet Russian history on the evils of communism and socialism and merits of free market capitalism.
The function of socialism is to raise suffering to a higher level. Hat
by CultureWars
$12 $19
Description: Blue script reading We Put the Fun in Function over pink stripes, with a goose peeking out of a play tunnel. A classic OT pun for therapists and students.
We Put the Fun in Function Occupational Therapy Goose Tunnel Hat
by NovasArtCo
$12 $19
Description: A white line diagram on a black background illustrating a control system. It features a summation circle with inputs 'r' and 'e', and outputs 'r', 'e', and 'u'. Two blocks labeled 'C' and 'F' are connected, receiving and sending 'y' signals. Another block labeled 'P' is grounded. Below the diagram, the equation 'H(s) = H(s) / 2' is displayed.
Description: A black rectangular plaque with a distressed white border. In the center, a mathematical formula for the Taylor series is displayed in white text. Below the plaque, in large, distressed blue capital letters, reads 'TAYLOR SERIES THE ERRORS TOUR'.
Taylor Series Formula The Errors Tour Blackboard Hat
by CAYUT TRUCK
$12 $19
Description: A monochrome text-based representation of the Fourier transform formula. The top line reads 'Fourier transform' in a bold, sans-serif font. Below, the mathematical equation F(\xi) = \int_{-\infty}^{\infty} f(x)e^{-i2\pi x\xi} dx is displayed.
Fourier transform F(\xi) = Integral of f(x)e^{-i2\pi x\xi} dx Hat
by Pastel Dream Nostalgia
$12 $19
Description: A monochrome flowchart depicting the process of an engineer. It shows 'PROBLEM' and 'COFFEE' entering a central box labeled 'ENGINEER'. Arrows indicate 'ENGINEER' producing 'SOLUTION' and a 'SARCASM (BY-PRODUCT)' below.
Engineer Problem Coffee Solution Sarcasm By-Product Flowchart Hat
by maniacstudio
$12 $19
Description: A black background features white text stating "MATH PUNS" at the top. Below this is a yellow and white waveform graphic. The next line reads "ARE THE THE" in white. Prominently displayed are the words "FIRST" in white and "SINE" in yellow. The bottom line reads "OF MADNESS" in white. Small tick marks resembling rulers appear on the left and right sides of the design.
Description: A graphic featuring mathematical diagrams of a parabola and a cone. The text reads "MY PARABOLA DON'T WANT NONE" in yellow and white, and "UNLESS YOU GOT CONES HUN" in white and yellow. The parabola is shown on a coordinate plane, and the cone has labeled points and dashed lines.
My Parabola Don't Want None Unless You Got Cones Hun Hat
by FARMERSTYLESS
$12 $19
Description: A code snippet displayed in a dark background. The text reads "tryAgain()", followed by "while(noSuccess) {", and then "if (Dead) break;". A closing curly brace "}" is present at the bottom left. The text is primarily white and light blue.
tryAgain() while(noSuccess) if (Dead) break; { } Code Hat
by Stunt Studio
$12 $19
Description: A dark background displays lines of Python code in various bright colors. Key elements include function definitions like 'def process_data(data):', variable assignments like 'index = "Initialize"[]', and conditional statements like 'if check(item):'. The code appears to be processing data and computing results.
Description: A mathematical equation presented in white text on a black background. The equation reads 'lim x ~ Gamma(x) / (x/ln(x)) = 1'. It features a fraction with 'lim x ~ Gamma(x)' as the numerator and '(x/ln(x)) = 1' as the denominator.
Limit Equation: lim x ~ Gamma(x) / (x/ln(x)) = 1 Hat
by Xsmile Xstd
$12 $19
Description: A black background displays a mathematical equation in white text and symbols. The equation begins with an integral symbol from 'n' to 'f', followed by '1', a summation symbol, '(', 'x', '=', and a square root symbol over a summation symbol, followed by ',', '(', 'x', ')', ')'. The words 'Fourier transform' are displayed prominently at the top.
Description: A graphic with a mathematical formula at the top, "f(x) = ∑ f(n)(a) / n!(x-a)n". Below the formula, in large block letters with a textured overlay, reads "TAYLOR SERIES" on the first line and "THE ERRORS TOUR" on the second line. The background is split between light grey and black.
Description: A dark background displays lines of code. It features variable declarations like "let userValue = 10;", "let count = 1;", and "let isperfect = true;". A "while" loop condition "(count <= userValue)" and an "if" condition "(count % 2 === 0)" are visible, along with "ship(count);" and "count++;".
Programming Code Snippet with Variables and Loop Hat
by Stunt Studio
$12 $19
Description: A black background displays a white control system block diagram. It includes labels 'r', 'e', 'C', 'u', 'P', 'y', and 'F'. Below the diagram is a mathematical formula for H(s) with 's' as the variable, showing the transfer function of the system.
Control System Diagram with Formula H(s) = P(s)C(s) / (1 + P(s)C(s)F(s)) Hat
by funnymushroomz
$12 $19
Description: A dark background with code snippets. The code reads "if (stomach != null) { keepCoding(); orderPizza(); } else }". The text is in bright pink and green.
If Stomach Not Null Keep Coding Order Pizza Else Hat
by YOOOOSTUDIO
$12 $19
