
Structural Calculus, as it is conceived today, does not take into consideration the Physical existence of objects, since only one line is used, Theory, which possesses dimensional existence only in one coordinate to represent the object to be analysed, and which bases its calculation on only one parameter without considering at least another coordinate, a minimal condition for the abstraction of a threedimensional object to a twodimensional representation, series of planes in a third coordinate. Since a linear model is used, it is useful to work with Graphs of Mathematical functions in which these graphs are only drawings of functions which are not related at all with models of forces exerted upon objects in situations of analysis, using a mathematical tool, the Differential Calculus: Derivates and Integrals, in order to determine slopes and drawing areas of mathematical functions or defined objects, since from the point of view of Physics this tool only allows to determine the speed of a moving object or the time taken by an event. The existing Structural Calculus does not consider laws of Physics as basic conditions to any relationship of a system with actions of Force acted upon it, since it deliberately omits the twodimensional condition as minimal abstraction of an object, which determines equilibrium conditions which are requirements for considering an stable object in a system of ActionsReactions. Due to the fact that it is only a Mathematical approach, it does not hesitates to break and alter the same mathematical laws to justify its approach. This is obvious since it determines permanent equilibrium reactions for vertical movement in the momentum equation equal to zero, and it reuses these reactions in the momentum equation to obtain values other than zero, fact which is not mathematically acceptable since a constant can not have two different values. Structural Calculus as it is conceived today tries to present all efforts as variables for stable equilibrium of an object, without considering that the action of any given force as well as that of gravity is constant. Also an object which is defined from the point of view of Physics in relation to shape and material nature, is constant. Constant condition is consistent with stable and permanent equilibrium for any object or system, equal to zero for all parameters. Existing Structural Calculus does not have any valid and real argument to justify its use, application, conclusions and results, since it does not have any relationship with reality, it even rejects it tojustify and valudate itself. The mistake made by the existing Structural Calculus in determining magnitudes of Forces, Momentums and Efforts is at least a hundred per cent (100%) wrong against reality, mistake which is compensated by chance, due to "certainty coefficients"; as well as any equilibrium is Indeterminate and precarious. Consequently, the three examples presented above shows, based on possible answers: right or wrong, the differences between Physical and Geometrical reality with regard to theorization of existing Structural Calculus. 


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"Lester Navea Lucar  Architect" 