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INTRODUCTION
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CLASSICAL IDEAS
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WRAP-UP
THE PRINCIPLE OF LEAST ACTION
INTRODUCTION
A NEW DEGREE OF REFINEMENT
MINIMIZATION
EXAMPLE OF A MINIMIZATION LAW: FERMAT'S LEAST TIME PRINCIPLE FOR LIGHT
RELATION TO THE EQUATIONS OF MOTION
THE SET OF ALL PATHS
ONE CAVEAT: MATHEMATICS VS. PHYSICS, OR, STRAIGHT AHEAD AND DAMN THE TORPEDOES!
MINIMIZATION AND THE SLOPE OF A VALLEY
WHY THIS WAS THE RIGHT DIRECTION TO LOOK
NOETHER'S THEOREM AND THE IMPORTANCE OF SYMMETRY
CHOOSING ACTIONS BY SYMMETRY
SYNOPSIS