If you graph a linear function, you get a line. If you graph a quadratic function, you get something called a parabola. A parabola tends to look like a smile or a frown, depending on the function. Check out this tutorial and learn about parabolas!
Orange Door Meanings. Orange is a colour associated with Mercury, which is the swiftest of the planets. Indeed the planet as the fleet-footed Roman god is symbolic of for reception, communication, perception, commerce, movement, intelligence and flexibility. With these kind of qualities, it might be a good idea to paint your business door orange.
Interior designers traditionally consider the door as part of the interior trim, which includes the baseboards and door and window casings. It's unusual to paint trim the same color as the walls, although the monochromatic effect this creates can complement oversized windows or a prominent fireplace.