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

This is Day 4 of my collection of printable equations. To see the whole collection, go to: http://www.thingiverse.com/thing:227210

For today's equation, I picked the standard normal distribution (http://en.wikipedia.org/wiki/Normal_distribution). This is the simplest form of the Normal Distribution from statistics, where the mean = 0 and the standard deviation = 1.

Details:

• units are in mm
• Range(x) = -50 to 50
• curve scaled to give a maximum height of 70% of the width.
• stl resized to make x axis = 100 mm

As always, I'm going to continue to post one equation per day until get bored or people lose interest. If there's a particular equation you'd like to see, leave a comment and I'll give it a shot.