generalized_lorentzian_grad — generalized_lorentzian

function to calculate the gradient of a generalized Lorentzian distribution momentum distribution with respect to parallel and perpendicular momentum

generalized_lorentzian_grad(p_perp, p_par, n, theta, kp)

Arguments

p_perp	`numeric` value of perpendicular momentum component
p_par	`numeric` value of parallel momentum component
n	`numeric` particle density.
theta	`numeric` Particle themal momentum parameter
kp	`numeric` kappa parameter (spectral index).

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