Ratings
=========


.. csv-table::

    ":math:`A` ", "area of the straight section of the cable."
    ":math:`E` ", "Young's module."
    ":math:`F` ", "vector of the internal forces of the element."
    ":math:`{F}_{n}` ", "internal force at the :math:`n` node."
    ":math:`H` ", "horizontal component of tension [:ref:`§An1 <§An1>`]."
    ":math:`{I}_{3}` ", "3rd order unit matrix."
    ":math:`K` ", "element stiffness matrix."
    ":math:`l` ", "current length of the element."
    ":math:`{l}_{0}` ", "length at rest."
    ":math:`{l}_{i}` ", "initial length."
    ":math:`{l}_{1}` "," :math:`\overrightarrow{{N}_{3}{N}_{1}}`"
    ":math:`{l}_{1}` ", "Euclidean norm of :math:`{l}_{1}`"
    ":math:`{l}_{2}` "," :math:`\overrightarrow{{N}_{3}{N}_{2}}`"
    ":math:`{l}_{2}` ", "Euclidean norm of :math:`{l}_{2}`."
    ":math:`N` ", "current voltage of the cable constituting the element."
    ":math:`{N}_{i}` ", "initial voltage (pretension)."
    ":math:`S` ", "cable span arrow [:ref:`§An1 <§An1>`]."
    ":math:`s` ", "length of a span [:ref:`§An1 <§An1>`]."
    ":math:`T` ", "current temperature."
    ":math:`{T}_{i}` ", "initial temperature."
    ":math:`u` ", "vector-displacement of the nodes in relation to the initial position."
    ":math:`{u}_{n}` ", "moving the :math:`n` node from its initial position."
    ":math:`w` ", "weight per unit length."
    ":math:`{x}_{n}` ", "vector-position of node :math:`n` in initial configuration."
    ":math:`\alpha` ", "thermal expansion coefficient."
    ":math:`\varepsilon` ", "current deformation compared to the initial configuration."