angle
call-with-input-file
call-with-output-file
char-alphabetic?
char-ci=?
char-lower-case?
char-numeric?
char-ready?
char-upper-case?
char-whitespace?
close-input-port
close-output-port
complex?
current-input-port
current-output-port
eof-object?
eval
exact->inexact
exact?
imag-part
inexact->exact
inexact?
input-port?
integer->char
interaction-environment
list->string
load
magnitude
make-polar
make-rectangular
make-string
modulo
null-environment
open-input-file
open-output-file
output-port?
peek-char
quotient
read
read-char
real-part
real?
remainder
scheme-report-environment
string->list
string->number
string-ci<=?
string-ci<?
string-ci=?
string-ci>=?
string-ci>?
string-copy
string-length
string-ref
string-set!
string<=?
string<?
string=?
string>=?
string>?
substring
transcript-off
transcript-on
with-input-from-file
with-output-to-file
boolean?
port?