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One of the most influential early works in graphic statics is one of Maxwell,where he introduced the idea of a discontinuous stress function and the use ofa 3D projective polarity for a planar problem. A recent work gave an analyticaldescription with the goal to provide explaining power, treating planar forcesas linear functionals (moment functionals) forming a 3D vector space, so forceand form diagrams of planar problems can be interpreted in a 3-dimensional way.The linear combination of these moment functions can naturally be used as adiscontinuous stress function since the Airy stress function is known tocorrespond to moments of planar forces. The main contribution of this work isto present a dimension independent way of treating forces as functions, thatreturns the known stress-functions of planar and spatial graphic statics. Thisis done by relying on the multi-linear function definition ofGrassmann-algebra.

The force as a function: Towards analytical graphic statics for spatial structures