"unable to convert to an explicit first-order system"

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Question:"unable to convert to an explicit first-order system"

Posted: 9009134 110 Product: Maple 2017

August 09 2017

hi... I have a problem with dsolve.

"unable to convert to an explicit first-order system"

please help me

thanks

unable_to_convert_to_an_explicit_first-order_system.mw

$sys3 := {-3.94190107376326*10^(-23)*(diff(g3(y), y, y, y, y, y, y))+1.07838202775510*10^(-20)*(diff(g3(y), y, y, y, y))-3.40658117485714*10^(-9)*(diff(g1(y), y, y, y, y, y))-4.01448960000000*10^(-7)*(diff(g1(y), y, y, y))-4.56192000000000*10^(-19)*(diff(g3(y), y, y)), -4032000*(diff(g5(y), y, y))+(9/1000000)*g3(y)-(237/500000000)*g5(y)*omega2-(237/4000000000)*g4(y)*omega2+(237/40000000000)*(diff(g1(y), y))*omega2-(237/20000000000)*(diff(g2(y), y))*omega2, -1.51200000000000*10^10*(diff(g4(y), y, y))-0.900000000000000e-5*g3(y)-4.74000000000000*10^(-7)*g4(y)*omega2-5.92500000000000*10^(-8)*g5(y)*omega2+1.18500000000000*10^(-8)*(diff(g1(y), y))*omega2-5.92500000000000*10^(-9)*(diff(g2(y), y))*omega2-1.15287906461538*10^8*(diff(g1(y), y, y, y, y, y)), 1.62147762523876*10^11*(diff(g1(y), y, y, y, y))+0.252000000000000e-5*(diff(g3(y), y))+5.6000000*10^7*g2(y)-5.6000000*10^7*g1(y)+4.74000000000000*10^(-7)*g1(y)*omega2+5.92500000000000*10^(-9)*(diff(g5(y), y))*omega2+5.92500000000000*10^(-10)*(diff(g2(y), y, y))*omega2+1.18500000000000*10^(-8)*(diff(g4(y), y))*omega2-1.18500000000000*10^(-9)*(diff(g1(y), y, y))*omega2+5.92500000000000*10^(-8)*g2(y)*omega2+3.40658117485714*10^(-9)*(diff(g3(y), y, y, y, y, y))-7.16872433152730*10^(-7)*(diff(g3(y), y, y, y))-1.09035520000000*10^7*(diff(g1(y), y, y))+1.09035520000000*10^7*(diff(g2(y), y, y)), 1.39966033920000*10^6*(diff(g2(y), y, y, y, y))+0.252000000000000e-5*(diff(g3(y), y))-5.6000000*10^7*g2(y)+5.6000000*10^7*g1(y)+4.74000000000000*10^(-7)*g2(y)*omega2-1.18500000000000*10^(-8)*(diff(g5(y), y))*omega2+5.92500000000000*10^(-10)*(diff(g1(y), y, y))*omega2-5.92500000000000*10^(-9)*(diff(g4(y), y))*omega2-1.18500000000000*10^(-9)*(diff(g2(y), y, y))*omega2+5.92500000000000*10^(-8)*g1(y)*omega2+5.29912627200000*10^5*(diff(g1(y), y, y, y, y))+3.40658117485714*10^(-9)*(diff(g3(y), y, y, y, y, y))-4.01448960000000*10^(-7)*(diff(g3(y), y, y, y))+1.09035520000000*10^7*(diff(g1(y), y, y))-1.09035520000000*10^7*(diff(g2(y), y, y))}:$

$bcs3 := {-(63/25000)*(D(g5))(0) = 0, -(63/25000)*(D(g5))(1) = 0, -(189/20)*(D(g4))(0)+1.12585846153846*10^(-15)*((D@@5)(g1))(0) = 0, -(189/20)*(D(g4))(1)+1.12585846153846*10^(-15)*((D@@5)(g1))(1) = 0, 9.62378191836733*10^(-51)*((D@@3)(g3))(0)-1.51215428571429*10^(-39)*(D(g3))(0)+3.32673942857143*10^(-32)*((D@@2)(g1))(0) = 0, 9.62378191836733*10^(-51)*((D@@3)(g3))(1)-1.51215428571429*10^(-39)*(D(g3))(1)+3.32673942857143*10^(-32)*((D@@2)(g1))(1) = 0, -9.62378191836733*10^(-51)*((D@@4)(g3))(0)+2.70027551020408*10^(-39)*((D@@2)(g3))(0)-3.32673942857143*10^(-32)*((D@@3)(g1))(0) = 0, -9.62378191836733*10^(-51)*((D@@4)(g3))(1)+2.70027551020408*10^(-39)*((D@@2)(g3))(1)-3.32673942857143*10^(-32)*((D@@3)(g1))(1) = 0, 6.33389697358892*10^(-8)*((D@@2)(g1))(0)+3.32673942857143*10^(-32)*((D@@3)(g3))(0)-6.27264000000000*10^(-21)*(D(g3))(0) = 0, 6.33389697358892*10^(-8)*((D@@2)(g1))(1)+3.32673942857143*10^(-32)*((D@@3)(g3))(1)-6.27264000000000*10^(-21)*(D(g3))(1) = 0, 5.46742320000000*10^(-13)*((D@@2)(g2))(0)+2.06997120000000*10^(-13)*((D@@2)(g1))(0)+3.32673942857143*10^(-32)*((D@@3)(g3))(0)-6.27264000000000*10^(-21)*(D(g3))(0) = 0, 5.46742320000000*10^(-13)*((D@@2)(g2))(1)+2.06997120000000*10^(-13)*((D@@2)(g1))(1)+3.32673942857143*10^(-32)*((D@@3)(g3))(1)-6.27264000000000*10^(-21)*(D(g3))(1) = 0, 9.62378191836733*10^(-51)*((D@@6)(g3))(0)-4.21242979591837*10^(-39)*((D@@4)(g3))(0)+3.32673942857143*10^(-32)*((D@@5)(g1))(0)+6.27264000000000*10^(-21)*((D@@3)(g1))(0)+2.85120000000000*10^(-28)*((D@@2)(g3))(0) = 0, 9.62378191836733*10^(-51)*((D@@6)(g3))(1)-4.21242979591837*10^(-39)*((D@@4)(g3))(1)+3.32673942857143*10^(-32)*((D@@5)(g1))(1)+6.27264000000000*10^(-21)*((D@@3)(g1))(1)+2.85120000000000*10^(-28)*((D@@2)(g3))(1) = 0, g1(0) = 0, g1(1) = 0, g2(0) = 0, g2(1) = 0}:$

dsys4 := {bcs3, sys3}:

Error, (in plots/odeplot) input is not a valid dsolve/numeric solution

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