You who more than oncespelled angle when meaning angel,are now one—maybe both.A sharp line on white paperdriving hardand fastin another spacewhose numbersI do not know.YetIn the arithmeticof our individual journeys,let us incline,My dearest angle,toward that vertexthat despite variantswe bend,infinite together,while angels math.

INTRODUCTION Recognition of gait patterns has been studied intensively during the last decades. Different gait strategies have been elucidated by applying different waveform analysis techniques to biomechanical gait data [1,2] and it has been shown that individuals can be identified using joint angles in the sagittal plane [3]. However, little is known about additional biomechanical variables f...

We construct a quadrature formula with n+ 1 angles and positive weights, exact in the (2n+1)-dimensional space of trigonometric polynomials of degree ≤ n on intervals with length smaller than 2π. We apply the formula to the construction of product Gaussian quadrature rules on circular sectors, zones, segments and lenses. 2000 AMS subject classification: 65D32.