El gráfico de la función cruce el eje X con f = 0
o sea hay que resolver la ecuación:
$$\frac{\sin{\left(6280 \left(x - 0.0005\right) \right)}}{6280 \left(x - 0.0005\right)} = 0$$
Resolvermos esta ecuaciónPuntos de cruce con el eje X:
Solución analítica$$x_{1} = 0.00100025360725952$$
Solución numérica$$x_{1} = -1.54778491446822$$
$$x_{2} = -89.4143295079596$$
$$x_{3} = -91.7595184187922$$
$$x_{4} = -5.91499890584384$$
$$x_{5} = 72.0815420164171$$
$$x_{6} = 76.1801198206944$$
$$x_{7} = 33.4114379216489$$
$$x_{8} = -12.2322014583171$$
$$x_{9} = 74.0740521341318$$
$$x_{10} = -89.7499996784307$$
$$x_{11} = 17.364302707978$$
$$x_{12} = -23.6399847182632$$
$$x_{13} = 15.5063608106161$$
$$x_{14} = -87.7519867710362$$
$$x_{15} = -83.6474059234718$$
$$x_{16} = -26.7805768646659$$
$$x_{17} = 54.2565054825459$$
$$x_{18} = -17.7499987463896$$
$$x_{19} = -238.676999320412$$
$$x_{20} = 2.47475434150559$$
$$x_{21} = -38.2613971512445$$
$$x_{22} = -7.84297630822203$$
$$x_{23} = -9.8169770424681$$
$$x_{24} = 39.7546536616996$$
$$x_{25} = 48.4040385312168$$
$$x_{26} = -19.7540146970712$$
$$x_{27} = 54.5211396407862$$
$$x_{28} = -70.8229044477667$$
$$x_{29} = -34.8976918960315$$
$$x_{30} = 2.1335813813546$$
$$x_{31} = 46.3084761704066$$
$$x_{32} = -85.6899414019124$$
$$x_{33} = 91.6924839282049$$
$$x_{34} = -29.6260193827306$$
$$x_{35} = 80.0550842625267$$
$$x_{36} = -36.9327235703632$$