Bad Country Songs

All the integrators I use are Fortran from the 1980s
That's probably why she left
I declared IMPLICIT NONE
She declared IMPLICIT SOME
Took the dog and left me bereft

Only my cpu is left to keep me warm
Integrating away my heart

Hank then told me
I'm losing precision
Dlsode would be his decision

I got some good SORT code at home,
But I think the common blocks might be all wrong,
Sometimes, lord, JD just can't be found.

Lookin at a black box, baby
That code ain't been touched
Since 1980

Take this RK4 and shove it

My woman done left and took all the reason I was integrating for

How do I propagate myself to your heart?

Fixed steps don't catch her curves
A variable step size is what she lurves

AGDL is down
Punchcards up and readin
We're gonna do what they say can't be done
We've got a long propagate
And a short time to step there
So hit those limits
Come on, Fortran, run!

A simple question so I thought. Now my code divides by naught!

All my exes are symplectic...

Don't be so cruel to me
Just remember our last syzygy

My solver's numbers it did round, Now my errors know no bounds

She wanted to SPICE things up
I said "I can't compile that"
Now all my truck's tires are flat
All I wanted was eclipses
And now I miss my missus

Checking visibility for a ground site
I just want to hold you tight
But we don't have the right rotation
We're in an occultation

Where oh where has my MUTSat gone?
Where oh where could it be?
I tried to send it to L1,
But it ended up at L3.

My baby's into dynamical systems theory,
Sometimes makes me leary,
But now we'll never part,
She's found the weak stability boundary trajectory into my heart.

I ain't got enough money to buy Matlab,
Octave's all I can afford.
I wanted to use ODE113,
But now I'm stuck with RK4.