Imaginary Number Phone Cases - iPhone and Android

Description: It's all fun and games until someone loses an eye--or an i, the imaginary number missing from this equation gone wrong. The perfect gift for math teachers, or for anyone who enjoys a geeky pun.

Description: i^2 = -1 shown as two quarter turns in the complex plane: multiplying by i rotates 1 to i, then to -1. For algebra teachers, math nerds and engineers who use complex numbers daily.

Description: This Math Humor design, featuring the phrases Get Real! and Be Rational., is perfect for Math Teachers, Math Students, Engineers, Scientists, and anyone who appreciates Pi, Imaginary Numbers, Rational Numbers, and Real Numbers.

Description: The i, the imaginary number that makes the square root of a negative number possible has fallen. So naturally, it's all fun and games until someone loses an i.

Description: Also know as Euler's identity. It combines the numbers 0, 1, pi, e, and i in one equation.

Description: Show off your mathematical humor with this clever design made for anyone who loves a good number pun. Featuring a distressed square root of negative 4 equals 2 equation above bold white lettering with a red italic i, with the joke “It’s All Fun And Games Until Someone Loses An i.” in stacked type. Perfect for math teachers, mathematicians, engineers, STEM students, nerds, and pun lovers. Great for Pi Day, back to school, birthdays, graduations, or for the person who laughs at algebra jokes.

Description: The imaginary unit, i.

Description: A clever and witty math joke design featuring an imaginary number pun for science and mathematics enthusiasts. Perfect for math teachers, students, engineers, and geeks, suitable for apparel and everyday lifestyle products.

Description: A clever and witty math joke design featuring an imaginary number pun for science and mathematics enthusiasts. Perfect for math teachers, students, engineers, and geeks, suitable for apparel and everyday lifestyle products.

Description: Say "Hi!" to my imaginary friend, the imaginary unit!

Description: Math humor for mathematicians, math teachers, math students. A witty mathematical pun design featuring Get Real! Be Rational. and the symbols for Pi and imaginary numbers.

Description: The square root of negative one, two cubed, sigma, and pi form a visual math joke above "...and it was delicious!" Cream symbols, teal outlines, gold rays, and starbursts fill the circular design. Shirt

Description: imaginary number i white

Description: A simple white graphic on a black background showing a Cartesian coordinate system with labels 'y' and 'x'. Text reads "I'm just a non-trivial zero seeking a real x part in an imaginary world."

Description: Someone Loses An i

Description: A monochrome humorous graphic with two speech bubbles above mathematical symbols. The left bubble says "Be Rational" above the square root of -1. The right bubble says "Get Real" above a stylized pi symbol with a winking face.

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.

Description: The imaginary unit, i.

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.

Description: This Mathematics design is perfect for Math Lover Teacher Student. Featuring the text Get Real! Be Rational. this design appeals to anyone with an interest in Numbers and Math Humor.

Description: Get Real! Be Rational. Perfect for mathematicians, math teachers, and math students who appreciate mathematics humor. A great design for anyone who loves math and intellectual jokes.

Description: Shit Just Got Real- Funny Math Pi Formula Square Root

Description: Mathematics pun for math students, teachers, science lovers, and STEM enthusiasts. This clever design features Get Real! Be Rational. Ideal for math geeks and professors.

Description: Mathematics Humor For Math Lovers, Teachers, And Students. This Design Features Get Real! Be Rational. Perfect For Mathematicians, Science Geeks, And Stem Enthusiasts Who Enjoy Funny Math Puns.

Description: Get Real! Be Rational. Math humor for mathematicians, math students, and math teachers. Clever number joke for math lovers.

Description: Get Real! Be Rational. Math Humor Design For Mathematicians Math Students And Math Teachers Who Love Funny Number Puns And Mathematics.

Description: This design features a funny math pun. Get Real! Be Rational. is perfect for mathematicians, math teachers, and math students who love math humor and science jokes.

Description: A black background with white text. The top line displays a mathematical equation: the square root of -4 equals 2i. Below the equation, in all capital letters, are the phrases "IT'S ALL FUN AND GAMES" and "UNTIL SOMEONE LOSES AN I."

Description: Also know as Euler's identity. It combines the numbers 0, 1, pi, e, and i in one equation.

Description: The origin of complex numbers

Description: Named after mathematician Leonhard Euler, Euler's identity is known as a prime example of mathematical beauty because it links the four most fundamental constants in mathematics: the circle constant pi, Euler's number e, the imaginary unit i, as well as the numbers 1 and 0. It also features three basic arithmetic operations: addition, multiplication and exponentiation. This Japanese-language design features the famous equation along with its Japanese name ("oiraa no toushiki"). Wear this design to show your appreciation for the beauty of mathematics or buy it as a gift for your favorite math otaku and Japan enthusiast because nothing is more beautiful than math.

Description: Named after mathematician Leonhard Euler, Euler's identity is known as a prime example of mathematical beauty because it links the four most fundamental constants in mathematics: the circle constant pi, Euler's number e, the imaginary unit i, as well as the numbers 1 and 0. It also features three basic arithmetic operations: addition, multiplication and exponentiation. This Japanese-language design features the famous equation along with its Japanese name ("oiraa no toushiki"). Wear this design to show your appreciation for the beauty of mathematics or buy it as a gift for your favorite math otaku and Japan enthusiast because nothing is more beautiful than math.

Description: Square Root Of Negative Four Equals 2 It Is All Fun And Games Until Someone Loses An I Math Teacher

Description: Square root of negative one is “i,” the set of all even numbers is represented by 2Z. Put it together with Immanuel Kant and you get “i Kant even.”