User:Coderjoe/Sandbox2: Difference between revisions
Content added Content deleted
No edit summary |
No edit summary |
||
| Line 41: | Line 41: | ||
<lang parigp> A=[sin, cos, x->x^2]; |
<lang parigp> A=[sin, cos, x->x^2]; |
||
B=[asin, acos, x->sqrt(x)];</lang> |
B=[asin, acos, x->sqrt(x)];</lang> |
||
=={{header|Perl}}== |
|||
<lang perl>use Math::Complex ':trig'; |
|||
sub compose { |
|||
my ($f, $g) = @_; |
|||
sub { |
|||
$f -> ($g -> (@_)); |
|||
}; |
|||
} |
|||
my $cube = sub { $_[0] ** (3) }; |
|||
my $croot = sub { $_[0] ** (1/3) }; |
|||
my @flist1 = ( \&Math::Complex::sin, \&Math::Complex::cos, $cube ); |
|||
my @flist2 = ( \&asin, \&acos, $croot ); |
|||
print join "\n", map { |
|||
compose($flist1[$_], $flist2[$_]) -> (0.5) |
|||
} 0..2;</lang> |
|||
=={{header|Perl 6}}== |
|||
{{works with|Rakudo|2011.06}} |
|||
<lang perl6>sub compose (&g, &f) { return { g f $^x } } |
|||
my $x = *.sin; |
|||
my $xi = *.asin; |
|||
my $y = *.cos; |
|||
my $yi = *.acos; |
|||
my $z = * ** 3; |
|||
my $zi = * ** (1/3); |
|||
my @functions = $x, $y, $z; |
|||
my @inverses = $xi, $yi, $zi; |
|||
for @functions Z @inverses { say compose($^g, $^f)(.5) }</lang> |
|||
Output: |
|||
<pre>0.5 |
|||
0.5 |
|||
0.5</pre> |
|||
Revision as of 20:37, 16 July 2011
Oz
To be executed in the REPL.
<lang oz>declare
fun {Compose F G}
fun {$ X}
{F {G X}}
end
end
fun {Cube X} X*X*X end
fun {CubeRoot X} {Number.pow X 1.0/3.0} end
in
for
F in [Float.sin Float.cos Cube]
I in [Float.asin Float.acos CubeRoot]
do
{Show {{Compose I F} 0.5}}
end
</lang>
PARI/GP
<lang parigp>compose(f,g)={
x -> f(g(x))
};
fcf()={
my(A,B); A=[x->sin(x), x->cos(x), x->x^2]; B=[x->asin(x), x->acos(x), x->sqrt(x)]; for(i=1,#A, print(compose(A[i],B[i])(.5)) )
};</lang> Usage note: In Pari/GP 2.4.3 the vectors can be written as <lang parigp> A=[sin, cos, x->x^2];
B=[asin, acos, x->sqrt(x)];</lang>