10.57   ODE No. 1912

{ddtx1(t)=ax2(t)+bx3(t)cos(ct)+bx4(t)sin(ct),ddtx2(t)=ax1(t)+bx3(t)sin(ct)bx4(t)cos(ct),ddtx3(t)=bx1(t)cos(ct)bx2(t)sin(ct)+ax4(t),ddtx4(t)=bx1(t)sin(ct)+bx2(t)cos(ct)ax3(t)}

  1. Problem in Latex
  2. Mathematica input
  3. Maple input

Mathematica: cpu = 0.011001 (sec), leaf count = 122 DSolve[{x1(t)=ax2(t)+bx3(t)cos(ct)+bx4(t)sin(ct),x2(t)=ax1(t)+bx3(t)sin(ct)bx4(t)cos(ct),x3(t)=ax4(t)bx1(t)cos(ct)bx2(t)sin(ct),x4(t)=ax3(t)bx1(t)sin(ct)+bx2(t)cos(ct)},{x1(t),x2(t),x3(t),x4(t)},t]

Maple: cpu = 1.716 (sec), leaf count = 11399 {{x1(t)=_C2+_C3sin(ct)+_C4cos(ct),x2(t)=sin(ct)_C4cos(ct)_C3+_C1,x3(t)=b(sin(ct)_C2acos(ct)_C1a+_C3a+_C3c)a(a+c),x4(t)=b(sin(ct)_C1a+cos(ct)_C2a+_C4a+_C4c)a(a+c)},{x1(t)=_C1et24a24ac4b22c22c2(4a2+4ac+4b2+c2)+_C2et24a24ac4b22c22c2(4a2+4ac+4b2+c2)+_C3et24a24ac4b22c2+2c2(4a2+4ac+4b2+c2)+_C4et24a24ac4b22c2+2c2(4a2+4ac+4b2+c2),x2(t)=18c(a2+ac+b2)(_C3(4a24ac4b22c2+24a2c2+4ac3+4c2b2+c4)32et24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4_C4(4a24ac4b22c2+24a2c2+4ac3+4c2b2+c4)32et24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4+4e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4t4a24ac4b22c2+24a2c2+4ac3+4c2b2+c4_C3a2+4e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4t4a24ac4b22c2+24a2c2+4ac3+4c2b2+c4_C3ac+4e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4t4a24ac4b22c2+24a2c2+4ac3+4c2b2+c4_C3b2+4c2e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4t4a24ac4b22c2+24a2c2+4ac3+4c2b2+c4_C34e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4t4a24ac4b22c2+24a2c2+4ac3+4c2b2+c4_C4a24e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4t4a24ac4b22c2+24a2c2+4ac3+4c2b2+c4_C4ac4e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4t4a24ac4b22c2+24a2c2+4ac3+4c2b2+c4_C4b24c2e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4t4a24ac4b22c2+24a2c2+4ac3+4c2b2+c4_C4+_C1(4a24ac4b22c224a2c2+4ac3+4c2b2+c4)32et24a24ac4b22c224a2c2+4ac3+4c2b2+c4_C2(4a24ac4b22c224a2c2+4ac3+4c2b2+c4)32et24a24ac4b22c224a2c2+4ac3+4c2b2+c4+44a24ac4b22c224a2c2+4ac3+4c2b2+c4e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t_C1a2+44a24ac4b22c224a2c2+4ac3+4c2b2+c4e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t_C1ac+44a24ac4b22c224a2c2+4ac3+4c2b2+c4e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t_C1b2+4c24a24ac4b22c224a2c2+4ac3+4c2b2+c4e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t_C144a24ac4b22c224a2c2+4ac3+4c2b2+c4e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t_C2a244a24ac4b22c224a2c2+4ac3+4c2b2+c4e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t_C2ac44a24ac4b22c224a2c2+4ac3+4c2b2+c4e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t_C2b24c24a24ac4b22c224a2c2+4ac3+4c2b2+c4e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t_C2),x3(t)=18bc(a2+ac+b2)((4a24ac4b22c224a2c2+4ac3+4c2b2+c4)32cos(ct)et24a24ac4b22c224a2c2+4ac3+4c2b2+c4_C2a+4sin(ct)e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t4a2c2+4ac3+4c2b2+c4_C2a2+(4a24ac4b22c224a2c2+4ac3+4c2b2+c4)32cos(ct)et24a24ac4b22c224a2c2+4ac3+4c2b2+c4_C1a+4sin(ct)4a2c2+4ac3+4c2b2+c4e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t_C1a24sin(ct)e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4t4a2c2+4ac3+4c2b2+c4_C3a2+cos(ct)et24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4(4a24ac4b22c2+24a2c2+4ac3+4c2b2+c4)32_C3a+4cos(ct)e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4t4a24ac4b22c2+24a2c2+4ac3+4c2b2+c4_C3a3cos(ct)et24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4(4a24ac4b22c2+24a2c2+4ac3+4c2b2+c4)32_C4a4cos(ct)e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4t4a24ac4b22c2+24a2c2+4ac3+4c2b2+c4_C4a3+8sin(ct)e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t_C1a3c+4b2c2e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4t_C3sin(ct)+4b2c2e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t_C2sin(ct)+4b2c2e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t_C1sin(ct)+4b2c2e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4t_C4sin(ct)+4b24a2c2+4ac3+4c2b2+c4e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t_C1sin(ct)4b2e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4t4a2c2+4ac3+4c2b2+c4_C4sin(ct)4b2e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4t4a2c2+4ac3+4c2b2+c4_C3sin(ct)+4b2e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t4a2c2+4ac3+4c2b2+c4_C2sin(ct)+44a24ac4b22c224a2c2+4ac3+4c2b2+c4cos(ct)e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t_C1a34sin(ct)e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4t4a2c2+4ac3+4c2b2+c4_C4a244a24ac4b22c224a2c2+4ac3+4c2b2+c4cos(ct)e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t_C2a3+8b2sin(ct)e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t_C1ac+8b2sin(ct)e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t_C2ac+8b2sin(ct)e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4t_C3ac+8b2sin(ct)e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4t_C4ac+4sin(ct)4a2c2+4ac3+4c2b2+c4e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t_C1ac+4sin(ct)e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t4a2c2+4ac3+4c2b2+c4_C2ac+4b2e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4t4a24ac4b22c2+24a2c2+4ac3+4c2b2+c4_C3acos(ct)4b2e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4t4a24ac4b22c2+24a2c2+4ac3+4c2b2+c4_C4acos(ct)4b24a24ac4b22c224a2c2+4ac3+4c2b2+c4e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t_C2acos(ct)4_C34a24ac4b22c2+24a2c2+4ac3+4c2b2+c4e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4tb2ccos(ct)4_C1e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t4a24ac4b22c224a2c2+4ac3+4c2b2+c4b2ccos(ct)+4_C2e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t4a24ac4b22c224a2c2+4ac3+4c2b2+c4b2ccos(ct)+4_C44a24ac4b22c2+24a2c2+4ac3+4c2b2+c4e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4tb2ccos(ct)4sin(ct)e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4t4a2c2+4ac3+4c2b2+c4_C3ac4sin(ct)e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4t4a2c2+4ac3+4c2b2+c4_C4ac+12c2sin(ct)e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t_C1a2+4c3sin(ct)e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t_C1a+8sin(ct)e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t_C2a3c+12c2sin(ct)e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t_C2a2+4c3sin(ct)e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t_C2a+8sin(ct)e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4t_C3a3c+12c2sin(ct)e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4t_C3a2+4c3sin(ct)e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4t_C3a+8sin(ct)e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4t_C4a3c+12c2sin(ct)e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4t_C4a2+4c3sin(ct)e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4t_C4a+4b24a24ac4b22c224a2c2+4ac3+4c2b2+c4e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t_C1acos(ct)),x4(t)=18bc(a2+ac+b2)(4b2c2e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t_C1cos(ct)4b2c2e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4t_C4cos(ct)4b2c2e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4t_C3cos(ct)4b2c2e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t_C2cos(ct)4b2e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t4a2c2+4ac3+4c2b2+c4_C2cos(ct)4b24a2c2+4ac3+4c2b2+c4e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t_C1cos(ct)+4b2e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4t4a2c2+4ac3+4c2b2+c4_C4cos(ct)+4b2e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4t4a2c2+4ac3+4c2b2+c4_C3cos(ct)+4sin(ct)e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4t4a24ac4b22c2+24a2c2+4ac3+4c2b2+c4_C3a3+4cos(ct)e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4t4a2c2+4ac3+4c2b2+c4_C3a24cos(ct)4a2c2+4ac3+4c2b2+c4e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t_C1a2+4cos(ct)e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4t4a2c2+4ac3+4c2b2+c4_C4a2+sin(ct)et24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4(4a24ac4b22c2+24a2c2+4ac3+4c2b2+c4)32_C3a4sin(ct)e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4t4a24ac4b22c2+24a2c2+4ac3+4c2b2+c4_C4a3sin(ct)et24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4(4a24ac4b22c2+24a2c2+4ac3+4c2b2+c4)32_C4a+sin(ct)(4a24ac4b22c224a2c2+4ac3+4c2b2+c4)32et24a24ac4b22c224a2c2+4ac3+4c2b2+c4_C1asin(ct)(4a24ac4b22c224a2c2+4ac3+4c2b2+c4)32et24a24ac4b22c224a2c2+4ac3+4c2b2+c4_C2a4cos(ct)e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t4a2c2+4ac3+4c2b2+c4_C2a24sin(ct)4a24ac4b22c224a2c2+4ac3+4c2b2+c4e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t_C2a34_C34a24ac4b22c2+24a2c2+4ac3+4c2b2+c4e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4tb2csin(ct)+4_C2e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t4a24ac4b22c224a2c2+4ac3+4c2b2+c4b2csin(ct)4_C1e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t4a24ac4b22c224a2c2+4ac3+4c2b2+c4b2csin(ct)+4b24a24ac4b22c224a2c2+4ac3+4c2b2+c4e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t_C1asin(ct)4b24a24ac4b22c224a2c2+4ac3+4c2b2+c4e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t_C2asin(ct)+4b2e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4t4a24ac4b22c2+24a2c2+4ac3+4c2b2+c4_C3asin(ct)4b2e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4t4a24ac4b22c2+24a2c2+4ac3+4c2b2+c4_C4asin(ct)+4_C44a24ac4b22c2+24a2c2+4ac3+4c2b2+c4e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4tb2csin(ct)+4sin(ct)4a24ac4b22c224a2c2+4ac3+4c2b2+c4e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t_C1a38cos(ct)e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t_C1a3c12c2cos(ct)e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t_C1a24c3cos(ct)e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t_C1a8cos(ct)e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t_C2a3c12c2cos(ct)e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t_C2a24c3cos(ct)e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t_C2a8cos(ct)e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4t_C3a3c12c2cos(ct)e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4t_C3a24c3cos(ct)e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4t_C3a8cos(ct)e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4t_C4a3c12c2cos(ct)e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4t_C4a24c3cos(ct)e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4t_C4a8b2cos(ct)e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t_C1ac8b2cos(ct)e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t_C2ac8b2cos(ct)e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4t_C3ac8b2cos(ct)e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4t_C4ac4cos(ct)4a2c2+4ac3+4c2b2+c4e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t_C1ac4cos(ct)e1/24a24ac4b22c224a2c2+4ac3+4c2b2+c4t4a2c2+4ac3+4c2b2+c4_C2ac+4cos(ct)e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4t4a2c2+4ac3+4c2b2+c4_C3ac+4cos(ct)e1/24a24ac4b22c2+24a2c2+4ac3+4c2b2+c4t4a2c2+4ac3+4c2b2+c4_C4ac)}}