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Scheme and Ruby are similar

Scheme and Ruby are different

Scheme Basics

(define ...) (let ...) (letrec ...)

Equivalents from Ruby

Also multi-dimensional via SRFI-25, SRFI-47, & SRFI-63 (47 & 63 covered by the 'array-lib" egg).

Note that Chicken has only '(define-macro ...)' built-in. The "syntax-rules" system is an egg - the "syntax-case" egg.

TinyCLOS is probably the best supported by Chicken.

Installation & Libraries

Getting things Done

Pick Your Style