analysis: analysis::voigt_profile::gauss::value_with

def value_with_derivatives	(	self,
		x
	)

get the value of the function, and its first & second derivative

Parameters:

the point at which to evaluate the function

Returns:: (f(x), f'(x), f''(x))

Reimplemented from C2Function.

Definition at line 172 of file voigt_profile.py.

00172                                                :
00173                 x=x/self.sigma
00174                 a=math.exp(-x*x/2)*self.scale/self.sigma
00175                 return a, -x*a/self.sigma, (x*x-1)*a/self.sigma**2
00176         
00177         class lorentz(C2Functions.C2Function):
            def set_center(self, center):