(section
procedure
value-or-hole-1
...
value-or-hole-n)
procedure, leaving
the rest as parameters for the result procedure. Holes
(parameters for the result proedure) are indicated with the
<> symbol.
(left-section
binproc
left)
v, returns
(binproc left v).
(right-section
binproc
right)
v, returns
(binproc v right).
(l-s
binproc
left)
left-section.
(r-s
binproc
right)
right-section.
(^and
f1
f2
...
fn)
and. Creates
a new procedure that, when applied to some values, returns
(and (f1 values)
(f2 values)
...
(fn values)).(^or
f1
f2
...
fn)
or. Creates
a new procedure that, when applied to some values, returns
(or (f1 values)
(f2 values)
...
(fn values)).(^not
pred?)
not. Creates
a new procedure, that, when applied to some values, returns
the opposite of pred?. That is, (1)
if pred? returns a truish value when applied
to some parameters, the new procedure returns #f
when applied to those same parameters; (2) if
pred? returns false when applied to some
parameters, the new procedure returns #t when
applied to those same parameters.
(compose
f
g)
((compose f g) x)
is the same as (f (g x)).
(o
f1
f2
...
fn-1
fn)
f, in turn, starting with
fn and
working backwards. The composition, when applied to a value,
x, produces the same result as
(f1
(f2
(...
(fn-1
(fn x))))).
(constant
value)
value,
no matter what parameters it is applied to.