Given a one-dimensional Gaussian distribution, distributed as following:
f (x) = exp (-x ^ 2 / (2q)) / q / √ (2pi)
proof which q is the standard deviation
Thanks !The standard deviation is defined by:
http://www.mathsisfun.com/data/standard-deviation-formulas.html
Given a Differential Equation.
Is there Analytic Solutions or not?
And how do we know that?example: Given the equation y''=-y-y'+(1+|y|)*sin(t)
,how to prove a it has no analytical solution?Teach me ,please!
Thank you a lot!
Analytic Solution is resovle from Analytic Method.