Daily Equation #4 - Normal Distribution y = e^(-x^2/2) / (2pi)^0.5

thingiverse

Day 4 introduces the standard normal distribution equation, found at http://www.thingiverse.com/thing:227210. This basic Normal Distribution formula from statistics features mean = 0 and standard deviation = 1. Units are in mm with a range of x from -50 to 50; the curve is scaled for a maximum height at 70% of the width. The STL file adjusts the x-axis to 100mm. More printable equations will be posted daily until interest wanes or the author grows weary, and requests are welcome in comments. Print files don't need support and were photographed using a Replicator 2 with Makerware standard settings.