C# Class Pchp.Library.PhpMath

Implements PHP mathematical functions and constants.

Mostra file Open project: iolevel/peachpie

Private Properties

Property	Type	Description
AbsolutizeRange	void
BaseToDouble	double
ConvertToLong	PhpNumber
DoubleToBase	string
FindExtreme	Pchp.Core.PhpValue
GetExtreme	Pchp.Core.PhpValue
Power10Value	double
Random01	int
RoundInternal	double
_Log10Abs	int
base_convert	string

Public Methods

Method	Description
abs ( PhpNumber x ) : PhpNumber	Returns the absolute value of x.
abs ( long lx ) : PhpNumber
abs ( double x ) : double
acos ( double x ) : double	Returns the arc cosine of arg in radians. acos() is the complementary function of cos(), which means that x==cos(acos(x)) for every value of a that is within acos()' range.
acosh ( double x ) : double
asin ( double x ) : double	Returns the arc sine of arg in radians. asin() is the complementary function of sin(), which means that x==sin(asin(x)) for every value of a that is within asin()'s range.
asinh ( double x ) : double
atan ( double x ) : double
atan2 ( double y, double x ) : double
atanh ( double x ) : double
bindec ( string str ) : PhpNumber	Returns the decimal equivalent of the binary number represented by the binary_string argument. bindec() converts a binary number to an integer or, if needed for size reasons, double.
ceil ( double x ) : double	Returns the next highest integer value by rounding up x if necessary.
cos ( double x ) : double
cosh ( double x ) : double
decbin ( double number ) : string	Converts the lowest 32 bits of the given number to a binary string.
dechex ( long number ) : string	Returns a string containing a hexadecimal representation of the given number argument.
decoct ( int number ) : string	Returns a string containing an octal representation of the given number argument.
deg2rad ( double degrees ) : double	Degrees to radians.
exp ( double x ) : double	Returns `e` raised to the power of x.
expm1 ( double x ) : double	expm1() returns the equivalent to 'exp(arg) - 1' computed in a way that is accurate even if the value of arg is near zero, a case where 'exp (arg) - 1' would be inaccurate due to subtraction of two numbers that are nearly equal.
floor ( double x ) : double	Returns the next lowest integer value by rounding down x if necessary.
fmod ( double x, double y ) : double	Returns the floating point remainder (modulo) of the division of the arguments.
getrandmax ( ) : int	Show largest possible random value.
hexdec ( string str ) : PhpNumber	Hexadecimal to decimal. Returns the decimal equivalent of the hexadecimal number represented by the hex_string argument. hexdec() converts a hexadecimal string to a decimal number. hexdec() will ignore any non-hexadecimal characters it encounters.
hypot ( double x, double y ) : double
is_finite ( double x ) : bool
is_infinite ( double x ) : bool
is_nan ( double x ) : bool
lcg_value ( ) : double	Generates a pseudo-random number using linear congruential generator in the range of (0,1). This method uses the Framwork rand() generator which may or may not be the same generator as the PHP one (L(CG(2^31 - 85),CG(2^31 - 249))).
log ( double x ) : double
log ( double x, double logBase ) : double	If the optional logBase parameter is specified, log() returns log(logBase) x, otherwise log() returns the natural logarithm of x.
log10 ( double x ) : double	Returns the base-10 logarithm of x.
log1p ( double x ) : double	log1p() returns log(1 + number) computed in a way that is accurate even when the value of number is close to zero. log() might only return log(1) in this case due to lack of precision.
max ( ) : PhpValue	Find highest value. If the first and only parameter is an array, max() returns the highest value in that array. If at least two parameters are provided, max() returns the biggest of these values.
max ( PhpArray array ) : PhpValue	Find highest value.
max ( long a, long b ) : long	Find highest value.
min ( ) : PhpValue	Find lowest value. If the first and only parameter is an array, min() returns the lowest value in that array. If at least two parameters are provided, min() returns the smallest of these values.
min ( PhpArray array ) : PhpValue	Find lowest value.
min ( long a, long b ) : long	Find lowest value.
mt_getrandmax ( ) : int
mt_rand ( ) : int
mt_rand ( int min, int max ) : int
mt_srand ( ) : void	Seed the better random number generator. No return value.
mt_srand ( int seed ) : void	Seed the better random number generator. No return value.
octdec ( string str ) : PhpNumber	Returns the decimal equivalent of the octal number represented by the str argument.
pi ( ) : double	Returns an approximation of pi.
pow ( PhpNumber @base, PhpNumber exp ) : PhpNumber	Returns base raised to the power of exp.
rad2deg ( double radians ) : double	Radians to degrees.
rand ( ) : int	Generate a random integer.
rand ( int min, int max ) : int	Generate a random integer.
round ( double x ) : double	Rounds a float.
round ( double x, int precision ) : double	Rounds a float.
round ( double x, int precision, RoundMode mode = RoundMode.HalfUp ) : double	Rounds a float.
sin ( double x ) : double
sinh ( double x ) : double
sqrt ( double x ) : double
srand ( ) : void	Seed the random number generator. No return value.
srand ( int seed ) : void	Seed the random number generator. No return value.
tan ( double x ) : double
tanh ( double x ) : double
uniqid ( ) : string	Generate a unique ID. Gets a prefixed unique identifier based on the current time in microseconds.
uniqid ( string prefix ) : string	Generate a unique ID. Gets a prefixed unique identifier based on the current time in microseconds.
uniqid ( string prefix, bool more_entropy ) : string	Generate a unique ID. With an empty prefix, the returned string will be 13 characters long. If more_entropy is TRUE, it will be 23 characters.

Private Methods

Method	Description
AbsolutizeRange ( int &offset, int &length, int count ) : void	Absolutizes range specified by an offset and a length relatively to a dimension of an array. Ensures that `[offset,offset + length]` is subrange of `[0,count]`.
BaseToDouble ( string number, int fromBase ) : double
ConvertToLong ( double number ) : PhpNumber	Converts the given number to int64 (if the number is whole and fits into the int64's range).
DoubleToBase ( double number, int toBase ) : string
FindExtreme ( IEnumerable array, bool maximum ) : PhpValue
GetExtreme ( PhpValue numbers, bool maximum ) : PhpValue
Power10Value ( int power ) : double	Returns precise value of 10^power.
Random01 ( ) : int	Gets `0` or `1` randomly.
RoundInternal ( double value, RoundMode mode ) : double
_Log10Abs ( double value ) : int
base_convert ( string number, int fromBase, int toBase ) : string

Method Details

abs() public static method

Returns the absolute value of x.

public static abs ( PhpNumber x ) : PhpNumber
x	PhpNumber	The numeric value to process.
return	PhpNumber

abs() public static method

public static abs ( long lx ) : PhpNumber
lx	long
return	PhpNumber

abs() public static method

public static abs ( double x ) : double
x	double
return	double

acos() public static method

Returns the arc cosine of arg in radians. acos() is the complementary function of cos(), which means that x==cos(acos(x)) for every value of a that is within acos()' range.

public static acos ( double x ) : double
x	double	The argument to process.
return	double

acosh() public static method

public static acosh ( double x ) : double
x	double
return	double

asin() public static method

Returns the arc sine of arg in radians. asin() is the complementary function of sin(), which means that x==sin(asin(x)) for every value of a that is within asin()'s range.

public static asin ( double x ) : double
x	double	The argument to process.
return	double

asinh() public static method

public static asinh ( double x ) : double
x	double
return	double

atan() public static method

public static atan ( double x ) : double
x	double
return	double

atan2() public static method

public static atan2 ( double y, double x ) : double
y	double
x	double
return	double

atanh() public static method

public static atanh ( double x ) : double
x	double
return	double

bindec() public static method

Returns the decimal equivalent of the binary number represented by the binary_string argument. bindec() converts a binary number to an integer or, if needed for size reasons, double.

public static bindec ( string str ) : PhpNumber
str	string	The binary string to convert.
return	PhpNumber

ceil() public static method

Returns the next highest integer value by rounding up x if necessary.

public static ceil ( double x ) : double
x	double	The value to round.
return	double

cos() public static method

public static cos ( double x ) : double
x	double
return	double

cosh() public static method

public static cosh ( double x ) : double
x	double
return	double

decbin() public static method

Converts the lowest 32 bits of the given number to a binary string.

public static decbin ( double number ) : string
number	double
return	string

dechex() public static method

Returns a string containing a hexadecimal representation of the given number argument.

public static dechex ( long number ) : string
number	long	Decimal value to convert.
return	string

decoct() public static method

Returns a string containing an octal representation of the given number argument.

public static decoct ( int number ) : string
number	int	Decimal value to convert.
return	string

deg2rad() public static method

Degrees to radians.

public static deg2rad ( double degrees ) : double
degrees	double
return	double

exp() public static method

Returns e raised to the power of x.

public static exp ( double x ) : double
x	double
return	double

expm1() public static method

expm1() returns the equivalent to 'exp(arg) - 1' computed in a way that is accurate even if the value of arg is near zero, a case where 'exp (arg) - 1' would be inaccurate due to subtraction of two numbers that are nearly equal.

public static expm1 ( double x ) : double
x	double	The argument to process
return	double

floor() public static method

Returns the next lowest integer value by rounding down x if necessary.

public static floor ( double x ) : double
x	double	The numeric value to round.
return	double

fmod() public static method

Returns the floating point remainder (modulo) of the division of the arguments.

public static fmod ( double x, double y ) : double
x	double	The dividend.
y	double	The divisor.
return	double

getrandmax() public static method

Show largest possible random value.

public static getrandmax ( ) : int
return	int

hexdec() public static method

Hexadecimal to decimal. Returns the decimal equivalent of the hexadecimal number represented by the hex_string argument. hexdec() converts a hexadecimal string to a decimal number. hexdec() will ignore any non-hexadecimal characters it encounters.

public static hexdec ( string str ) : PhpNumber
str	string	The hexadecimal string to convert.
return	PhpNumber

hypot() public static method

public static hypot ( double x, double y ) : double
x	double
y	double
return	double

is_finite() public static method

public static is_finite ( double x ) : bool
x	double
return	bool

is_infinite() public static method

public static is_infinite ( double x ) : bool
x	double
return	bool

is_nan() public static method

public static is_nan ( double x ) : bool
x	double
return	bool

lcg_value() public static method

Generates a pseudo-random number using linear congruential generator in the range of (0,1).

This method uses the Framwork rand() generator which may or may not be the same generator as the PHP one (L(CG(2^31 - 85),CG(2^31 - 249))).

public static lcg_value ( ) : double
return	double

log() public static method

public static log ( double x ) : double
x	double
return	double

log() public static method

If the optional logBase parameter is specified, log() returns log(logBase) x, otherwise log() returns the natural logarithm of x.

public static log ( double x, double logBase ) : double
x	double
logBase	double
return	double

log10() public static method

Returns the base-10 logarithm of x.

public static log10 ( double x ) : double
x	double
return	double

log1p() public static method

log1p() returns log(1 + number) computed in a way that is accurate even when the value of number is close to zero. log() might only return log(1) in this case due to lack of precision.

public static log1p ( double x ) : double
x	double	The argument to process
return	double

max() public static method

Find highest value. If the first and only parameter is an array, max() returns the highest value in that array. If at least two parameters are provided, max() returns the biggest of these values.

public static max ( ) : PhpValue
return	Pchp.Core.PhpValue

max() public static method

Find highest value.

public static max ( PhpArray array ) : PhpValue
array	Pchp.Core.PhpArray
return	Pchp.Core.PhpValue

max() public static method

Find highest value.

public static max ( long a, long b ) : long
a	long
b	long
return	long

min() public static method

Find lowest value. If the first and only parameter is an array, min() returns the lowest value in that array. If at least two parameters are provided, min() returns the smallest of these values.

public static min ( ) : PhpValue
return	Pchp.Core.PhpValue

min() public static method

Find lowest value.

public static min ( PhpArray array ) : PhpValue
array	Pchp.Core.PhpArray
return	Pchp.Core.PhpValue

min() public static method

Find lowest value.

public static min ( long a, long b ) : long
a	long
b	long
return	long

mt_getrandmax() public static method

public static mt_getrandmax ( ) : int
return	int

mt_rand() public static method

public static mt_rand ( ) : int
return	int

mt_rand() public static method

public static mt_rand ( int min, int max ) : int
min	int
max	int
return	int

mt_srand() public static method

Seed the better random number generator. No return value.

public static mt_srand ( ) : void
return	void

mt_srand() public static method

Seed the better random number generator. No return value.

public static mt_srand ( int seed ) : void
seed	int	Optional seed value.
return	void

octdec() public static method

Returns the decimal equivalent of the octal number represented by the str argument.

public static octdec ( string str ) : PhpNumber
str	string	The octal string to convert.
return	PhpNumber

pi() public static method

Returns an approximation of pi.

public static pi ( ) : double
return	double

pow() public static method

Returns base raised to the power of exp.

public static pow ( PhpNumber @base, PhpNumber exp ) : PhpNumber
@base	PhpNumber
exp	PhpNumber
return	PhpNumber

rad2deg() public static method

Radians to degrees.

public static rad2deg ( double radians ) : double
radians	double
return	double

rand() public static method

Generate a random integer.

public static rand ( ) : int
return	int

rand() public static method

Generate a random integer.

public static rand ( int min, int max ) : int
min	int	The lowest value to return.
max	int	The highest value to return.
return	int

round() public static method

Rounds a float.

public static round ( double x ) : double
x	double	The value to round.
return	double

round() public static method

Rounds a float.

public static round ( double x, int precision ) : double
x	double	The value to round.
precision	int	The optional number of decimal digits to round to. Can be less than zero to ommit digits at the end. Default is 0.
return	double

round() public static method

Rounds a float.

public static round ( double x, int precision, RoundMode mode = RoundMode.HalfUp ) : double
x	double	The value to round.
precision	int	The optional number of decimal digits to round to. Can be less than zero to ommit digits at the end. Default is 0.
mode	RoundMode	One of PHP_ROUND_HALF_UP, PHP_ROUND_HALF_DOWN, PHP_ROUND_HALF_EVEN, or PHP_ROUND_HALF_ODD. Default is PHP_ROUND_HALF_UP.
return	double

sin() public static method

public static sin ( double x ) : double
x	double
return	double

sinh() public static method

public static sinh ( double x ) : double
x	double
return	double

sqrt() public static method

public static sqrt ( double x ) : double
x	double
return	double

srand() public static method

Seed the random number generator. No return value.

public static srand ( ) : void
return	void

srand() public static method

Seed the random number generator. No return value.

public static srand ( int seed ) : void
seed	int	Optional seed value.
return	void

tan() public static method

public static tan ( double x ) : double
x	double
return	double

tanh() public static method

public static tanh ( double x ) : double
x	double
return	double

uniqid() public static method

Generate a unique ID. Gets a prefixed unique identifier based on the current time in microseconds.

public static uniqid ( ) : string
return	string

uniqid() public static method

Generate a unique ID. Gets a prefixed unique identifier based on the current time in microseconds.

public static uniqid ( string prefix ) : string
prefix	string	Can be useful, for instance, if you generate identifiers simultaneously on several hosts that might happen to generate the identifier at the same microsecond. /// With an empty prefix , the returned string will be 13 characters long. ///
return	string

uniqid() public static method

Generate a unique ID.

With an empty prefix, the returned string will be 13 characters long. If more_entropy is TRUE, it will be 23 characters.

public static uniqid ( string prefix, bool more_entropy ) : string
prefix	string	Use the specified prefix.
more_entropy	bool	Use LCG to generate a random postfix.
return	string