El gráfico de la función cruce el eje X con f = 0
o sea hay que resolver la ecuación:
$$\tan{\left(\left|{x}\right| \right)} - 1 = 0$$
Resolvermos esta ecuaciónPuntos de cruce con el eje X:
Solución analítica$$x_{1} = - \frac{\pi}{4}$$
$$x_{2} = \frac{\pi}{4}$$
Solución numérica$$x_{1} = -57.3340659280137$$
$$x_{2} = 32.2013246992954$$
$$x_{3} = 63.6172512351933$$
$$x_{4} = -32.2013246992954$$
$$x_{5} = -73.0420291959627$$
$$x_{6} = -25.9181393921158$$
$$x_{7} = 35.3429173528852$$
$$x_{8} = 88.7499924639117$$
$$x_{9} = 82.4668071567321$$
$$x_{10} = -38.484510006475$$
$$x_{11} = -22.776546738526$$
$$x_{12} = -88.7499924639117$$
$$x_{13} = -35.3429173528852$$
$$x_{14} = 98.174770424681$$
$$x_{15} = 95.0331777710912$$
$$x_{16} = 19.6349540849362$$
$$x_{17} = -3.92699081698724$$
$$x_{18} = 60.4756585816035$$
$$x_{19} = 85.6083998103219$$
$$x_{20} = 47.9092879672443$$
$$x_{21} = -69.9004365423729$$
$$x_{22} = -91.8915851175014$$
$$x_{23} = -63.6172512351933$$
$$x_{24} = 29.0597320457056$$
$$x_{25} = -29.0597320457056$$
$$x_{26} = -13.3517687777566$$
$$x_{27} = -95.0331777710912$$
$$x_{28} = -98.174770424681$$
$$x_{29} = -101.316363078271$$
$$x_{30} = 22.776546738526$$
$$x_{31} = -82.4668071567321$$
$$x_{32} = -19.6349540849362$$
$$x_{33} = -79.3252145031423$$
$$x_{34} = -16.4933614313464$$
$$x_{35} = 13.3517687777566$$
$$x_{36} = 25.9181393921158$$
$$x_{37} = -7.06858347057703$$
$$x_{38} = -44.7676953136546$$
$$x_{39} = 73.0420291959627$$
$$x_{40} = -66.7588438887831$$
$$x_{41} = 91.8915851175014$$
$$x_{42} = 10.2101761241668$$
$$x_{43} = 76.1836218495525$$
$$x_{44} = -47.9092879672443$$
$$x_{45} = 0.785398163397448$$
$$x_{46} = 101.316363078271$$
$$x_{47} = -85.6083998103219$$
$$x_{48} = -76.1836218495525$$
$$x_{49} = 44.7676953136546$$
$$x_{50} = -51.0508806208341$$
$$x_{51} = -41.6261026600648$$
$$x_{52} = -54.1924732744239$$
$$x_{53} = -60.4756585816035$$
$$x_{54} = 3.92699081698724$$
$$x_{55} = 16.4933614313464$$
$$x_{56} = 41.6261026600648$$
$$x_{57} = 79.3252145031423$$
$$x_{58} = 69.9004365423729$$
$$x_{59} = 54.1924732744239$$
$$x_{60} = 57.3340659280137$$
$$x_{61} = -10.2101761241668$$
$$x_{62} = 38.484510006475$$
$$x_{63} = 7.06858347057703$$
$$x_{64} = 51.0508806208341$$
$$x_{65} = 66.7588438887831$$