Dexterous Hand Practice 12: Where the Fingertip Should Go and How to Solve Joint Angles via Inverse Kinematics

The 12th installment of the Dexterous Hand Practice series focuses on solving inverse kinematics: first determine the target position of the fingertip, then solve backward for each joint angle. The content is tutorial in nature, centered on the correspondence between fingertip targets and joint angles, and does not involve specific robot models or experimental data.