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!
Green Door Meanings. Green bursts with images of spring, and so green is symbolic of renewal, growth, rejuvenation and transformation. Green is associated with the earth, and can provide grounding energies. Green is also used in holistic healing practices because it promotes physical well-being as well as compassion.
(Download the Therma-Tru press release showing the Hot New Door Colors) Five of the colors that I believe will find their ways to many front doors in 2015 are bold and influenced by cross cultural experiences, such as Bronze Tone and Tripoli Sand.