El gráfico de la función cruce el eje X con f = 0
o sea hay que resolver la ecuación:
$$\frac{x}{x^{4} + 1} = 0$$
Resolvermos esta ecuaciónPuntos de cruce con el eje X:
Solución analítica$$x_{1} = 0$$
Solución numérica$$x_{1} = -38924.2240515769$$
$$x_{2} = 40750.663499065$$
$$x_{3} = -11801.0022154205$$
$$x_{4} = -28752.9896931297$$
$$x_{5} = 11932.2332337334$$
$$x_{6} = -22819.776699386$$
$$x_{7} = 13627.420257544$$
$$x_{8} = -18581.7743243446$$
$$x_{9} = -24514.9795551387$$
$$x_{10} = 39055.456942591$$
$$x_{11} = -35533.8115283704$$
$$x_{12} = 36512.6474474803$$
$$x_{13} = 25493.8139386809$$
$$x_{14} = -30448.1946350475$$
$$x_{15} = -25362.5812761461$$
$$x_{16} = -27057.7852081828$$
$$x_{17} = 22103.4081391475$$
$$x_{18} = 20408.2067040581$$
$$x_{19} = 9389.47030167894$$
$$x_{20} = 39903.0602001535$$
$$x_{21} = 26341.415854272$$
$$x_{22} = 33122.2355712749$$
$$x_{23} = 30579.4274202539$$
$$x_{24} = -27905.3873881129$$
$$x_{25} = -29600.5921120642$$
$$x_{26} = 19560.606472086$$
$$x_{27} = -38076.6208456231$$
$$x_{28} = -21124.5747924176$$
$$x_{29} = -37229.0176874337$$
$$x_{30} = 41598.2668367468$$
$$x_{31} = -19429.3741013112$$
$$x_{32} = -21972.1756126927$$
$$x_{33} = -17734.1750055195$$
$$x_{34} = 35665.0443862406$$
$$x_{35} = -10105.8245164981$$
$$x_{36} = -10953.4119602341$$
$$x_{37} = -14343.7841359877$$
$$x_{38} = -16038.9780638028$$
$$x_{39} = 31427.0300532159$$
$$x_{40} = -31295.7972533261$$
$$x_{41} = 21255.8072735671$$
$$x_{42} = -40619.4305945579$$
$$x_{43} = -33838.6056060618$$
$$x_{44} = -20276.9742744031$$
$$x_{45} = -34686.2085353922$$
$$x_{46} = 28036.6201206554$$
$$x_{47} = -9258.24085096685$$
$$x_{48} = 17865.4072299567$$
$$x_{49} = 10237.0546500004$$
$$x_{50} = 18713.0066273502$$
$$x_{51} = 34817.4413833848$$
$$x_{52} = 28884.2224448405$$
$$x_{53} = 22951.0092659187$$
$$x_{54} = 17017.8083533235$$
$$x_{55} = 37360.2505630308$$
$$x_{56} = -36381.41458043$$
$$x_{57} = 0$$
$$x_{58} = -23667.378022156$$
$$x_{59} = -13496.1887074692$$
$$x_{60} = 15322.6125477245$$
$$x_{61} = -16886.5762207121$$
$$x_{62} = 24646.2121891277$$
$$x_{63} = 33969.8384434064$$
$$x_{64} = 42445.8702108311$$
$$x_{65} = -42314.6372944464$$
$$x_{66} = 32274.6327725017$$
$$x_{67} = 16170.2100881231$$
$$x_{68} = 27189.0179196558$$
$$x_{69} = -15191.3806524113$$
$$x_{70} = 14475.0158758461$$
$$x_{71} = -39771.8273021733$$
$$x_{72} = 12779.8259353655$$
$$x_{73} = -12648.5946204816$$
$$x_{74} = 11084.642596887$$
$$x_{75} = 29731.8248812659$$
$$x_{76} = -26210.1831660317$$
$$x_{77} = -32991.0027454318$$
$$x_{78} = 38207.8537291912$$
$$x_{79} = -41467.0339261158$$
$$x_{80} = 23798.6106243203$$
$$x_{81} = -32143.3999591076$$