3.5.2.7.9 Lorentz

The formula for Lorentzian Function, Lorentz(x, y0, xc, w, A), is:

y = y0 + (2*A/PI)*(w/(4*(x-xc)^2 + w^2))

where:

y0 is the baseline offset.

xc is the center of the peak.

w equals the width of the peak at half height.

A is the area under the peak.