MzScheme 360

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 implementation.

To reproduce my results on Ubuntu Gutsy Gibbon, install MzScheme with

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. (more)
Evaluates unquoted vectors to themselves. (more)
Allows the 'sqrt' procedure to return exact results when able. (more)
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)