how to span a 3*1 vector into a 3*3 skew symmetric matrix ?

I am following this eg https://www.mathworks.com/help/uav/ug/motion-planning-with-rrt-for-fixed-wing-uav.html and Matlab is showing ExampleHelperUAVStateSpace not defined?

Possibility of Using a State-Space Actuator in a Robot Created with Simscape Multibody

Can't understand the input parameters of RRT 3D algorithm

Generate random points inside a circle

Error while running simulink bicycle kinematic model for mobile robot

Convert Unix Time in Date Time Format with Milliseconds

Writing to file in compiled c code from simulink model, on Raspberry Pi

Unable to install add-ons to the Robotics System Toolbox (roboticsAddons)

What is the convention of the new quaternion( ) class introduced in R2018b?

Importing a Simscape Multibody Model into a RigidBodyTree with Mesh

Feedforward + PI Control Algorithm Yields Different Results

Reverse Displacement Analysis and Inputs for Arctan2 not being real

How could blocks from Robotics System Toolbox be built into embedded code running on Arm Cortex-A9?

Building a system to visualize the position and orientation of a ground mobile robot.

how to write the code for tracing this particular path?

How to find Rotation Matrix for a Given Position?

How to avoid obstacle in path planning using particle swarm in 3D environment?

forward and inverse dynamics of RRR serial manipulator equipped on 4 wheel mobile base.

Simulation of a rolling wheel on a flat surface using SimMechanics contact forces library block

When working with the revolute Joints of a Robot, what's the difference between Sensing the torque and using the Inverse Dynamics Block?

Convert python numpy array to double

Matlab freezes when trying to addScan to robotics.LidarSLAM object

Convert Rotation Matrix to Eular Angle with 'YXZ' Sequence

Formula for Kinetic Energy of 6DOF robot like ur5