# Flight Parameters and Quaternion Math

Aerospace parameter calculations and quaternion math

## Functions

 `airspeed` Airspeed from velocity `alphabeta` Incidence and sideslip angles `correctairspeed` Convert from one of other two airspeeds to equivalent airspeed (EAS), calibrated airspeed (CAS), or true airspeed (TAS) `dpressure` Compute dynamic pressure using velocity and density `machnumber` Compute Mach number using velocity and speed of sound `rrdelta` Compute relative pressure ratio `rrsigma` Compute relative density ratio `rrtheta` Compute relative temperature ratio
 `quatconj` Calculate conjugate of quaternion `quatdivide` Divide quaternion by another quaternion `quatexp` Exponential of quaternion `quatinterp` Quaternion interpolation between two quaternions `quatinv` Calculate inverse of quaternion `quatlog` Natural logarithm of quaternion `quatmod` Calculate modulus of quaternion `quatmultiply` Calculate product of two quaternions `quatnorm` Calculate norm of quaternion `quatnormalize` Normalize quaternion `quatpower` Power of quaternion `quatrotate` Rotate vector by quaternion

## Topics

Fundamental Coordinate System Concepts

Define coordinate systems when working with the Aerospace Toolbox software.

Coordinate Systems for Modeling

Define coordinate systems when modeling with the Aerospace Toolbox software.

Coordinate Systems for Navigation

Define coordinate systems for navigation when modeling with the Aerospace Toolbox software.

Coordinate Systems for Display

Define coordinate systems for display with the Aerospace Toolbox software.

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