plq_add — Piecewise linear quadratic (plq), addition of two plq functions
plqfg = plq_add(plqf,plqg)
matrix. A plq function with dimensions n x 4.
matrix. A plq function with dimensions n x 4.
matrix. A plq function with dimensions n x 4.
Computes the addition of two plq functions (plqf, plqg) and stores the result in plqfg.
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