MDK::Common::Math(3) User Contributed Perl Documentation MDK::Common::Math(3)NAMEMDK::Common::Math - miscellaneous math functions
SYNOPSIS
use MDK::Common::Math qw(:all);
EXPORTS
$PI the well-known constant
even(INT)odd(INT)
is the number even or odd?
sqr(FLOAT)sqr(3) gives 9
sign(FLOAT)
returns a value in { -1, 0, 1 }
round(FLOAT)
"round(1.2)" gives 1, "round(1.6)" gives 2
round_up(FLOAT, INT)
returns the number rounded up to the modulo: "round_up(11,10)"
gives 20
round_down(FLOAT, INT)
returns the number rounded down to the modulo: "round_down(11,10)"
gives 10
divide(INT, INT)
integer division (which is lacking in perl). In array context, also
returns the remainder: "($a, $b) = divide(10,3)" gives "$a is 3"
and "$b is 1"
min(LIST)max(LIST)
returns the minimum/maximum number in the list
or_(LIST)
is there a true value in the list?
and_(LIST)
are all values true in the list?
sum(LIST)product(LIST)
returns the sum/product of all the element in the list
factorial(INT)factorial(4) gives 24 (4*3*2)
OTHER
the following functions are provided, but not exported:
factorize(INT)
"factorize(40)" gives "([2,3], [5,1])" as 40 = 2^3 + 5^1
decimal2fraction(FLOAT)
"decimal2fraction(1.3333333333)" gives "(4, 3)" ($PRECISION is used
to decide which precision to use)
poly2(a,b,c)
Solves the a*x2+b*x+c=0 polynomial: "poly2(1,0,-1)" gives "(1, -1)"
permutations(n,p)
A(n,p)
combinaisons(n,p)
C(n,p)
SEE ALSO
MDK::Common
perl v5.16.3 2011-04-11 MDK::Common::Math(3)