Gre Math Lesson

Math::CDF is a Perl module to generate probabilities and quantiles from several statistical probability functions. SYNOPSIS use Math::CDF; $prob = &Math::CDF::pnorm(1.96); if( not defined($z = &Math::CDF::qnorm(0.975)) ) { die "qnorm() failed"; } or use Math::CDF qw(:all); $prob =...

Math::Vec is a Object-Oriented Vector Math Methods in Perl. SYNOPSIS use Math::Vec; $v = Math::Vec->new(0,1,2); or use Math::Vec qw(NewVec); $v = NewVec(0,1,2); @res = $v->Cross([1,2.5,0]); $p = NewVec(@res); $q = $p->Dot([0,1,0]); or use Math::Vec qw(:terse); $v = V(0,1,2); $q...

Math::Telephony::ErlangC is a Perl extension for Erlang C calculations. SYNOPSIS use Math::Telephony::ErlangC; # Evaluate probability that a service request will have to wait $wprob = wait_probability($traffic, $servers); # Probability that the wait time will be less than a fixed maximum...


Platforms: *nix

Math::Telephony::ErlangB is a Perl extension for Erlang B calculations. SYNOPSIS use Math::Telephony::ErlangB qw( :all ); # Evaluate blocking probability $bprob = blocking_probability($traffic, $servers); $gos = gos($traffic, $servers); # Same result as above # Dimension minimum number...


Platforms: *nix

Math::Expr is a Perl module that parses mathematical expressions. SYNOPSIS require Math::Expr; $p=new Math::Expr; $e=$p->Parse("a+4*b-d/log(s)+f(d,e)"); Parses mathematical expressions into a tree structure. The expressions may contain integers, real numbers, alphanumeric variable names,...


Platforms: *nix

Math::BaseCalc is a Perl module that can convert numbers between various bases. SYNOPSIS use Math::BaseCalc; my $calc = new Math::BaseCalc(digits => [0,1]); #Binary my $bin_string = $calc->to_base(465); # Convert 465 to binary $calc->digits(oct); # Octal my $number =...


Platforms: *nix

Math::BaseArith is a Perl extension for mixed-base number representation (like APL encode/decode). SYNOPSIS use Math::BaseArith; encode( value, base_list ); decode( representation_list, base_list ); The inspiration for this module is a pair of functions in the APL programming language...


Platforms: *nix

Math::Pari is a Perl interface to PARI. SYNOPSIS use Math::Pari; $a = PARI 2; print $a**10000; or use Math::Pari qw(Mod); $a = Mod(3,5); print $a**10000; This package is a Perl interface to famous library PARI for numerical/scientific/number-theoretic calculations. It allows use of...


Platforms: *nix

SYNOPSIS use Math::MatrixReal; use Math::MatrixReal::Aug; These are certain extra methods for Math::MatrixReal, in the tradition of Math::MatrixReal::Ext1; $matrix1->augmentright($matrix2); Creates a new matrix of the form [$matrix1 $matrix2]. $matrix1 and $matrix2 must have the same...


Platforms: *nix

Math::Random::MT::Auto is a Perl module for auto-seeded Mersenne Twister PRNGs. SYNOPSIS use strict; use warnings; use Math::Random::MT::Auto qw(rand irand shuffle gaussian), /dev/urandom => 256, random_org; # Functional interface my $die_roll = 1 + int(rand(6)); my $coin_flip =...


Platforms: *nix

Math::Amoeba is a Multidimensional Function Minimization. SYNOPSIS use Math::Amoeba qw(ConstructVertices EvaluateVertices Amoeba MinimiseND); my ($vertice,$y)=MinimiseND(@guess,@scales,&func,$tol,$itmax,$verbose); my @vertices=ConstructVertices(@vector,@offsets); my...


Platforms: *nix

Math::Polynomial::Solve is a Perl module to find the roots of polynomial equations. SYNOPSIS use Math::Complex; # The roots may be complex numbers. use Math::Polynomial::Solve qw(poly_roots); my @x = poly_roots(@coefficients); or use Math::Complex; # The roots may be complex numbers....


Platforms: *nix

Math::Calc::Euro is a Perl module to convert between EUR and the old currencies. SYNOPSIS my $guildercalc = Math::Calc::Euro->new(NLG) print $guildercalc->to_euro(1), "n"; # 0.45378... print $guildercalc->from_national(1), "n"; # same print $guildercalc->to_national(1), "n"; # 2.20371...


Platforms: *nix

Math::Fraction is a Perl module to manipulate exact fractions. SYNOPSIS use Math::Fraction; $a = frac(1,2); $b = frac(6,7); print "$a + $b = ", $a + $b, "$a * $b = ", $a * $b; print $a->num;.


Platforms: *nix

Math::NumberCruncher Perl module contains a collection of useful math-related functions. SYNOPSIS It should be noted that as of v4.0, there is now an OO interface to Math::NumberCruncher. For backwards compatibility, however, the previous, functional style will always be supported. # OO...


Platforms: *nix

Math::Logic::Predicate is a Perl module to manage and query a predicate assertion database. SYNOPSIS use Math::Logic::Predicate; $db = new Math::Logic::Predicate; # Enter some predicates into the database $db->add(<


Platforms: *nix

Flashcards Generator for GRE Prep project is a flashcards Generator for GE Prep. Flashcards are a nice way to prepare for competitive exams like GRE, SAT etc. This program generates Postscript files which you can cut into pieces to create flashcards. When preparing for competetive exams which...


Platforms: *nix

Math::Logic is a Perl module that provides pure 2, 3 or multi-value logic. SYNOPSIS use Math::Logic qw( $TRUE $FALSE $UNDEF $STR_TRUE $STR_FALSE $STR_UNDEF ) ; # 1 0 -1 TRUE FALSE UNDEF use Math::Logic :NUM ; # $TRUE $FALSE $UNDEF -- what you normally want use Math::Logic :ALL ; # All...


Platforms: *nix

Math::String module contains arbitrary sized integers having arbitrary charsets to calculate with key rooms. SYNOPSIS use Math::String; use Math::String::Charset; $a = new Math::String cafebabe; # default a-z $b = new Math::String deadbeef; # a-z print $a + $b; # Math::String "" $a =...


Platforms: *nix

Math::Symbolic is a Perl module for symbolic calculations. SYNOPSIS use Math::Symbolic; my $tree = Math::Symbolic->parse_from_string(1/2 * m * v^2); # Now do symbolic calculations with $tree. # ... like deriving it... my ($sub) = Math::Symbolic::Compiler->compile_to_sub($tree); my...


Platforms: *nix