Pfeildarstellung

A: (4, 3)
O: (0, 0)
a = Vector(O, A)
a1: x(a)
a2: y(a)
Text2: "P(" + (LaTeX[a1]) + "|" + (LaTeX[a2]) + ")"
gL: -7
gR: 7
gU: -4
gO: 4
Text1: "\vec{p}=\begin{pmatrix} " + (LaTeX[a1]) + " \\ " + (LaTeX[a2]) + " \end{pmatrix}"
b = false