[hedora]

“One could” indeed:

https://www.fractint.org/

From wikipedia:

> The name is a portmanteau of fractal and integer, since the first versions of Fractint used only integer arithmetic (also known as fixed-point arithmetic), for faster rendering on computers without math coprocessors. Since then, floating-point arithmetic and arbitrary-precision arithmetic modes have been added.

[eru]

I spent a lot of time with fractint in the late 1990s. Great memories!

[Sesse__]

Fractint is fixed-point, not exact rationals.