Note: This is MzScheme v360, which is what's packaged with Ubuntu Gutsy.
I haven't had a chance to try PLT Scheme 4 yet, which by all accounts
departs from the version 3 series considerably.
From the old PLT Scheme web page:
PLT Scheme is an umbrella name for a family of implementations of the
Scheme programming language.
MzScheme is the lightweight, embeddable, scripting-friendly PLT Scheme
To reproduce my results on Ubuntu Gutsy Gibbon, install MzScheme
sudo apt-get install mzscheme
and run the interpreter with
mzscheme --case-insens 2>&1
MzScheme makes the following choices:
- Allows the null combination, (), which returns the empty list.
- Evaluates unquoted vectors to themselves. (more)
- Allows the 'sqrt' procedure to return exact results when able.
- Allows the '*' procedure to return exact zero when a factor is an
exact zero, even if other factors are inexact. (more)
- Allows the '/' procedure to return exact zero when the dividend is
an exact zero, even if some divisors are inexact. (more)
- Allows division by inexact zero. (more)
- Supports arbitrary precision literal integers. (more)
- Supports arbitrary precision computed integers. (more)
- Supports the literal syntax for rational numbers (e.g. 1/2 is the
literal number one half). (more)
- Supports the literal syntax for complex numbers (e.g. 1+i is the
complex number with real and imaginary parts both 1). (more)
- Supports nontrivial exact rational numbers (e.g. (/ 1 3) produces
an exact one third, not a floating point approximation). (more)
- Supports nontrivial exact complex numbers. (more)
- Guesses the denominators of inexact numbers per R5RS. (more)