32 bit or 64 bit?

[Terry Reedy]

<ram.rachum at gmail.com> wrote in message 
news:1257aa24-14fa-426e-8019-262984c70633 at 2g2000hsn.googlegroups.com...
|> How did you determine that standard python floats are not good enough?

| I have a physical system set up in which a body is supposed to
| accelerate and to get very close to lightspeed, while never really
|attaining it.

Just a thought.  You might do better if you can rearrange your equations in 
terms of c-v instead of v.  Letting c=1, you cannot accutrately express
v = .99999999999999999999
in Python, but can easily express
1-v = .00000000000000000001.
And so on.

tjr