1 | initial version |

You'll need to let Sage know what the independent variable is by including `ivar=t`

in your command. Further, since you are solving a system of equations, you need to use `desolve_system`

.

```
a,t = var('a,t')
x = function('x', t)
y = function('y', t)
dx2 = 0 == -diff(x,t,2)-(1-a)*((x-a)/(sqrt((x-a)^2 + y^2))^3)-a*((x+1-a)/(sqrt((x+1-a)^2 + y^2))^3)+x+2*diff(y,t,1)
dy2 = 0 == -diff(x,t,2)-(1-a)*(y/(sqrt((x-a)^2 + y^2))^3)-a*(y/(sqrt((x+1-a)^2 + y^2))^3)+y-2*diff(x,t,1)
desolve_system([dx2,dy2],[x,y],ivar=t)
```

This code gives an error as well.

2 | No.2 Revision |

You'll need to let Sage know what the independent variable is by including `ivar=t`

in your command. Further, since you are solving a system of equations, you need to use `desolve_system`

.

```
a,t = var('a,t')
x = function('x', t)
y = function('y', t)
dx2 = 0 == -diff(x,t,2)-(1-a)*((x-a)/(sqrt((x-a)^2 + y^2))^3)-a*((x+1-a)/(sqrt((x+1-a)^2 + y^2))^3)+x+2*diff(y,t,1)
dy2 = 0 == -diff(x,t,2)-(1-a)*(y/(sqrt((x-a)^2 + y^2))^3)-a*(y/(sqrt((x+1-a)^2 + y^2))^3)+y-2*diff(x,t,1)
desolve_system([dx2,dy2],[x,y],ivar=t)
```

This code gets farther but gives an error as ~~well.~~well. This might be related to limitations in Maxima's inverse Laplace transform abilities.

3 | typo in equation |

You'll need to let Sage know what the independent variable is by including `ivar=t`

in your command. Further, since you are solving a system of equations, you need to use `desolve_system`

.

```
a,t = var('a,t')
x = function('x', t)
y = function('y', t)
dx2 = 0 == -diff(x,t,2)-(1-a)*((x-a)/(sqrt((x-a)^2 + y^2))^3)-a*((x+1-a)/(sqrt((x+1-a)^2 + y^2))^3)+x+2*diff(y,t,1)
dy2 = 0 ==
```~~-diff(x,t,2)-(1-a)*(y/(sqrt((x-a)^2 ~~-diff(y,t,2)-(1-a)*(y/(sqrt((x-a)^2 + y^2))^3)-a*(y/(sqrt((x+1-a)^2 + y^2))^3)+y-2*diff(x,t,1)
desolve_system([dx2,dy2],[x,y],ivar=t)

This code gets farther but gives an error as well. This might be related to limitations in Maxima's inverse Laplace transform abilities.

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