El gráfico de la función cruce el eje X con f = 0
o sea hay que resolver la ecuación:
$$\frac{\sqrt{2} \sin{\left(\sqrt{2} x - 1 \right)}}{2} = 0$$
Resolvermos esta ecuaciónPuntos de cruce con el eje X:
Solución analítica$$x_{1} = \frac{\sqrt{2}}{2}$$
$$x_{2} = \frac{\sqrt{2} \left(1 + \pi\right)}{2}$$
Solución numérica$$x_{1} = 42.914494693691$$
$$x_{2} = 94.0076484825122$$
$$x_{3} = -85.9291105129016$$
$$x_{4} = -8.17865909513018$$
$$x_{5} = -50.3860470076347$$
$$x_{6} = -63.7146958221098$$
$$x_{7} = -52.6074884767138$$
$$x_{8} = -57.0503714148722$$
$$x_{9} = 51.8002605700078$$
$$x_{10} = -88.1505519819808$$
$$x_{11} = 69.5717923226412$$
$$x_{12} = -5.957217626051$$
$$x_{13} = -68.1575787602681$$
$$x_{14} = 54.0217020390869$$
$$x_{15} = 49.5788191009286$$
$$x_{16} = -19.2858664405261$$
$$x_{17} = -21.5073079096053$$
$$x_{18} = 29.5858458792159$$
$$x_{19} = -25.9501908477637$$
$$x_{20} = -83.7076690438224$$
$$x_{21} = 60.6860264463245$$
$$x_{22} = 16.2571970647408$$
$$x_{23} = -12.6215420332886$$
$$x_{24} = 96.2290899515914$$
$$x_{25} = -61.4932543530306$$
$$x_{26} = 98.4505314206706$$
$$x_{27} = 31.8072873482951$$
$$x_{28} = -17.0644249714469$$
$$x_{29} = 34.0287288173743$$
$$x_{30} = 2.92854825026573$$
$$x_{31} = -39.2788396622387$$
$$x_{32} = -81.4862275747432$$
$$x_{33} = 67.350350853562$$
$$x_{34} = -41.5002811313179$$
$$x_{35} = -77.0433446365849$$
$$x_{36} = 9.59287265750328$$
$$x_{37} = -37.0573981931596$$
$$x_{38} = 76.2361167298788$$
$$x_{39} = 36.2501702864535$$
$$x_{40} = -3.73577615697182$$
$$x_{41} = 47.3573776318494$$
$$x_{42} = -72.6004616984265$$
$$x_{43} = 71.7932337917204$$
$$x_{44} = -65.9361372911889$$
$$x_{45} = 18.47863853382$$
$$x_{46} = 91.7862070134331$$
$$x_{47} = -79.264786105664$$
$$x_{48} = -99.2577593273767$$
$$x_{49} = 20.7000800028992$$
$$x_{50} = 7.3714311884241$$
$$x_{51} = 80.6789996680371$$
$$x_{52} = 14.0357555956616$$
$$x_{53} = -28.1716323168428$$
$$x_{54} = -32.6145152550012$$
$$x_{55} = 82.9004411371163$$
$$x_{56} = 62.9074679154037$$
$$x_{57} = 38.4716117555327$$
$$x_{58} = -48.1646055385555$$
$$x_{59} = -92.5934349201391$$
$$x_{60} = -23.7287493786845$$
$$x_{61} = 58.4645849772453$$
$$x_{62} = -70.3790202293473$$
$$x_{63} = -1974.15435923021$$
$$x_{64} = 0.707106781186548$$
$$x_{65} = -59.2718128839514$$
$$x_{66} = -210.329832781336$$
$$x_{67} = -579935.467135438$$
$$x_{68} = 22.9215214719784$$
$$x_{69} = 89.5647655443539$$
$$x_{70} = 74.0146752607996$$
$$x_{71} = -90.37199345106$$
$$x_{72} = -45.9431640694763$$
$$x_{73} = 56.2431435081661$$
$$x_{74} = 78.457558198958$$
$$x_{75} = 27.3644044101367$$
$$x_{76} = -43.7217226003971$$
$$x_{77} = -1.51433468789264$$
$$x_{78} = 87.3433240752747$$
$$x_{79} = -97.0363178582975$$
$$x_{80} = -30.393073785922$$
$$x_{81} = -10.4001005642094$$
$$x_{82} = 100.67197288975$$
$$x_{83} = 11.8143141265825$$
$$x_{84} = 40.6930532246118$$