Numerical Differentiation Toolbox
Description: Functions and classes to evaluate derivatives, partial derivatives, gradients, directional derivatives, Jacobians, and Hessians. 
 
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IVP Solver Toolbox
Description: Collection of fixed-step IVP solvers. Includes support for matrix-valued IVPs, and provides functions for generating IVP solver equations. 
 
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Interpolation Toolbox
Description: Interpolation routines. 
 
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Simple Unit Testing Toolbox
Description: Simple unit testing framework for MATLAB. 
 
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planet3D
3D Earth and Celestial Bodies 
 
 Description: Creates high-resolution renderings of the Earth and the major celestial bodies in our solar system for space mechanics applications. 
 
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ground_track
Ground Track 
 
 Description: Plots the ground track of an orbit given its planetodetic coordinates (i.e. planetodetic latitude and longitude). 
 
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mag_phase
Magnitude and Phase of a Transfer Function 
 
 Description: Magnitude and phase of a transfer function (i.e. linear system) at a specific point in the frequency domain. 
 
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c2d_euler
Euler c2d Transformation 
 
 Description: Transforms a continuous transfer function to a discrete transfer function using the forward and backward Euler methods. 
 
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solve_riccati_ode
Solve Riccati Differential Equation 
 
 Description: Solves the Riccati differential equation for the finite-horizon linear quadratic regulator. 
 
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derivative
Numerical Differentiation of Data 
 
 Description: Numerical differentiation of data (i.e. arrays) over the domain of the data or at specified points. 
 
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line_intersection
Intersection of Two Lines 
 
 Description: Finds the intersection of two lines. 
 
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tridiagonal_matrix and tridiagonal_vector
Tridiagonal Matrix Algorithm 
 
 Description: Solves the tridiagonal linear system Ax = d for x using two separate implementations of the tridiagonal matrix algorithm. 
 
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