Function Description
********************

	Name: LORENTZ (single Lorentzian fit) 
	Parameters: v0 T1 Mo

Notes
*****

v0 is the maximum value of the Lorentzian.
T1 is the measure of line width of the Lorentzian.
Mo is a scaling factor or amplitude.


C-code for the function
***********************

b = 4.0 * PI * PI;
c = a[1] / (1 + b * (x-a[0])*(x-a[0]) * (a[1]*a[1]));
answer = a[2] * c;