# Flight Parameters and Quaternion Math

Aerospace parameter calculations and quaternion math

## Functions

 airspeed Airspeed from velocity alphabeta Incidence and sideslip angles correctairspeed Calculate equivalent airspeed (EAS), calibrated airspeed (CAS), or true airspeed (TAS) from one of other two airspeeds 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.

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.