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-module(lists1).
-export([product/1, maximum/1]).

product(Xs) -> product(Xs, 1).
product([], P) -> P;
product([X|Xs], P) -> product(Xs, X*P).

maximum([X|Xs]) -> maximum(Xs, X).
maximum([X|[]], M) -> max(X, M);
maximum([X|Xs], M) -> maximum(Xs, max(X, M)).

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-module(tailrecurs).
-export([fib/1, perfect/1, testPerfect/0]).

fib(0) -> 0;
fib(1) -> 1;
fib(N) when N>1 ->
   fib(N, 1, 0).

fib(2, Acc1, Acc2) -> Acc1 + Acc2;
fib(N, Acc1, Acc2) when N>2 -> fib(N-1, Acc1 + Acc2, Acc1).

apbarrero

-module(recurs).
-export([fib/1, pieces/1]).

fib(1) ->
   [0];
fib(2) ->
   [1,0];
fib(N) when N>2 ->
   L = fib(N-1),
   [X|Xs] = L,

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-module(first).
-export([double/1,mult/2,area/3,sq/1,treble/1]).

mult(X,Y) ->
    X*Y.

double(X) ->
    mult(2,X).

area(A,B,C) ->

apbarrero

#!/usr/bin/env ruby

require 'test/unit'

def flatten(array)
  f = []
  if array.kind_of?(Array)
    array.each{ |e| f.concat(e.kind_of?(Array) ? flatten(e) : [e]) }
  else
    f = [array]

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git log <current branch>..origin/<current branch>

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git config --global alias.ahead '!git log HEAD..origin/$(git symbolic-ref HEAD | sed "s:refs/heads/::g")'

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PROCESS STATE CODES

Here are the different values that the s, stat and state output specifiers (header "STAT" or "S") will display to describe the state of a process.

CODE	Meaning
D	Uninterruptible sleep (usually IO)
R	Running or runnable (on run queue)
S	Interruptible sleep (waiting for an event to complete)
T	Stopped, either by a job control signal or because it is being traced.
W	paging (not valid since the 2.6.xx kernel)

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HEADER	Meaning
UID	effective user ID. (alias uid).
PID	process ID number of the process.
PPID	parent process ID.
C	processor utilization. Currently, this is the integer value of the percent usage over the lifetime of the process. (see %cpu).
START/STIME	starting time or date of the process. Only the year will be displayed if the process was not started the same year ps was invoked, or "mmmdd" if it was not started the same day, or "HH:MM" otherwise.
TTY	controlling tty (terminal). (alias tt, tty).
STAT	multi-character process state. See section PROCESS STATE CODES for the different values meaning. See also s and state if you just want the first character displayed.
TIME	cumulative CPU time, "[dd-]hh:mm:ss" format. (alias cputime).

apbarrero

NORMAL=$(tput sgr0)
GREEN=$(tput setaf 2; tput bold)
YELLOW=$(tput setaf 3)
RED=$(tput setaf 1)

function red() {
    echo -e "$RED$*$NORMAL"
}

function green() {