# Distribution functions (`plasmapy.formulary.distribution`)¶

Common distribution functions for plasmas, such as the Maxwelian or Kappa distributions. Functionality is intended to include generation, fitting and calculation.

## Functions¶

 `Maxwellian_1D`(v, T[, particle, v_drift, …]) Probability distribution function of velocity for a Maxwellian distribution in 1D. `Maxwellian_velocity_2D`(vx, vy, T[, …]) Probability distribution function of velocity for a Maxwellian distribution in 2D. `Maxwellian_velocity_3D`(vx, vy, vz, T[, …]) Probability distribution function of velocity for a Maxwellian distribution in 3D. `Maxwellian_speed_1D`(v, T[, particle, …]) Probability distribution function of speed for a Maxwellian distribution in 1D. `Maxwellian_speed_2D`(v, T[, particle, …]) Probability distribution function of speed for a Maxwellian distribution in 2D. `Maxwellian_speed_3D`(v, T[, particle, …]) Probability distribution function of speed for a Maxwellian distribution in 3D. `kappa_velocity_1D`(v, T, kappa[, particle, …]) Return the probability density at the velocity `v` in m/s to find a particle `particle` in a plasma of temperature `T` following the Kappa distribution function in 1D. `kappa_velocity_3D`(vx, vy, vz, T, kappa[, …]) Return the probability density function for finding a particle with velocity components `v_x`, `v_y`, and `v_z``in m/s in a suprathermal plasma of temperature ``T` and parameter `kappa` which follows the 3D Kappa distribution function.

Examples