PHP 5 Math function

PHP 5Math function Introduction to PHP Math

The Math function can handle values in the range of integers and float.

Installation

The PHP Math function is part of the PHP core. These functions can be used without installation.

PHP 5 Math function

function	Description
ABS ()	Returns the absolute value of a number.
ACOs ()	Returns the inverse cosine of a number.
Acosh ()	Returns the inverse hyperbolic cosine of a number.
ASIN ()	Returns the inverse of a number of strings.
Asinh ()	Returns the inverse hyperbolic sine of a number.
Atan ()	Returns the inverse tangent of a number.
ATAN2 ()	Returns the inverse tangent of two variables x and Y.
Atanh ()	Returns the inverse hyperbolic tangent of a number.
Base_convert ()	Converts a number between arbitrary binaries.
Bindec ()	Converts a binary number into a decimal number.
Ceil ()	Rounds up to the nearest integer.
cos ()	Returns the cosine of a number.
Cosh ()	Returns the hyperbolic cosine of a number.
Decbin ()	Converts a decimal number to a binary number.
Dechex ()	Converts a decimal number to a hexadecimal number.
DECOCT ()	Converts a decimal number to an octal number.
Deg2rad ()	Converts the angle value to a radian value.
EXP ()	Returns the value of Ex.
EXPM1 ()	Returns the value of the Ex-1.
Floor ()	Rounds down to the nearest integer.
Fmod ()	Returns the remainder of the floating point number for X/Y.
Getrandmax ()	Returns the maximum possible value for the random number displayed by calling the rand () function.
Hexdec ()	Converts the hexadecimal number to a decimal number.
Hypot ()	Calculates the hypotenuse length of the right triangle.
Is_finite ()	Determines whether it is a finite value.
Is_infinite ()	Determines whether the value is infinite.
Is_nan ()	Determines whether it is a non-numeric value.
Lcg_value ()	Returns a pseudo-random number with a range of (0, 1).
Log ()	Returns the natural logarithm of a number (base E).
LOG10 ()	Returns the base 10 logarithm of a number.
LOG1P ()	Return log (1+number)
Max ()	Returns the maximum value in an array, or the maximum value in several specified values.
Min ()	Returns the minimum value in an array, or a minimum of several specified values.
Mt_getrandmax ()	Returns the maximum possible value of the random number displayed by calling the Mt_rand () function.
Mt_rand ()	Generates a random integer using the Mersenne Twister algorithm.
Mt_srand ()	Seeding Mersenne Twister random number generator.
Octdec ()	Converts the octal number to a decimal number.
Pi ()	Returns the value of pi.
POW ()	Returns the Y-side of X.
Rad2deg ()	Converts the Radian value to an angle value.
RAND ()	Returns a random integer.
Round ()	Rounding the floating-point numbers.
Sin ()	Returns the sine of a number.
Sinh ()	Returns the hyperbolic sine of a number.
sqrt ()	Returns the square root of a number.
Srand ()	Seeding random number generators.
Tan ()	Returns the tangent of a number.
Tanh ()	Returns the hyperbolic tangent of a number.

PHP 5 pre-defined Math constants

Constants	value	Description	PHP version
Inf	Inf	Infinite	PHP 4
M_e	2.7182818284590452354	Return E	PHP 4
M_euler	0.57721566490153286061	Return Euler Constants	PHP 4
M_lnpi	1.14472988584940017414	Returns the natural logarithm of pi: log_e (PI)	PHP 5.2
M_ln2	0.69314718055994530942	Returns the natural logarithm of 2: log_e 2	PHP 4
M_ln10	2.30258509299404568402	Returns the natural logarithm of 10: log_e 10	PHP 4
m_log2e	1.4426950408889634074	Returns the base 2 logarithm of E: log_2 E	PHP 4
m_log10e	0.43429448190325182765	Returns the base 10 logarithm of E: log_10 E	PHP 4
M_pi	3.14159265358979323846	Return Pi	PHP 4
M_pi_2	1.57079632679489661923	Back to PI/2	PHP 4
M_pi_4	0.78539816339744830962	Back to Pi/4	PHP 4
M_1_pi	0.31830988618379067154	Back to 1/pi	PHP 4
M_2_pi	0.63661977236758134308	Back to 2/pi	PHP 4
M_sqrtpi	1.77245385090551602729	Returns the square root of pi: sqrt (pi)	PHP 5.2
M_2_sqrtpi	1.12837916709551257390	Returns the 2/square root of pi: 2/sqrt (PI)	PHP 4
M_sqrt1_2	0.70710678118654752440	Returns the square root of 1/2:1/sqrt (2)	PHP 4
M_sqrt2	1.41421356237309504880	Returns the square root of 2: sqrt (2)	PHP 4
M_sqrt3	1.73205080756887729352	Returns the square root of 3: sqrt (3)	PHP 5.2
NAN	NAN	Not a number	PHP 4
Php_round_half_up	1	Rounding up when you encounter a condition of. 5	PHP 5.3
Php_round_half_down	2	Rounding down when you encounter a condition of. 5	PHP 5.3
Php_round_half_even	3	When you encounter a situation of. 5, take even rounds	PHP 5.3
Php_round_half_odd	4	Odd rounding when encountering. 5 cases	PHP 5.3

PHP 5 Math function