El gráfico de la función cruce el eje X con f = 0
o sea hay que resolver la ecuación:
$$\tan{\left(\frac{x}{2} - \frac{\pi}{8} \right)} = 0$$
Resolvermos esta ecuaciónPuntos de cruce con el eje X:
Solución analítica$$x_{1} = \frac{\pi}{4}$$
Solución numérica$$x_{1} = 51.0508806208341$$
$$x_{2} = -36.9137136796801$$
$$x_{3} = 25.9181393921158$$
$$x_{4} = 63.6172512351933$$
$$x_{5} = -99.7455667514759$$
$$x_{6} = -24.3473430653209$$
$$x_{7} = -87.1791961371168$$
$$x_{8} = -30.6305283725005$$
$$x_{9} = -80.8960108299372$$
$$x_{10} = 0.785398163397448$$
$$x_{11} = 32.2013246992954$$
$$x_{12} = -49.4800842940392$$
$$x_{13} = 82.4668071567321$$
$$x_{14} = 38.484510006475$$
$$x_{15} = -93.4623814442964$$
$$x_{16} = 13.3517687777566$$
$$x_{17} = 7.06858347057703$$
$$x_{18} = 57.3340659280137$$
$$x_{19} = -74.6128255227576$$
$$x_{20} = -43.1968989868597$$
$$x_{21} = -55.7632696012188$$
$$x_{22} = 88.7499924639117$$
$$x_{23} = -5.49778714378214$$
$$x_{24} = 76.1836218495525$$
$$x_{25} = 44.7676953136546$$
$$x_{26} = 101.316363078271$$
$$x_{27} = -68.329640215578$$
$$x_{28} = 69.9004365423729$$
$$x_{29} = 95.0331777710912$$
$$x_{30} = 19.6349540849362$$
$$x_{31} = -11.7809724509617$$
$$x_{32} = -18.0641577581413$$
$$x_{33} = -62.0464549083984$$