PHP Tutorial 3 Basic Math Functions

PHP Math Functions
Function Description
abs() Returns the absolute (positive) value of a number
acos() Returns the arc cosine of a number
acosh() Returns the inverse hyperbolic cosine of a number
asin() Returns the arc sine of a number
asinh() Returns the inverse hyperbolic sine of a number
atan() Returns the arc tangent of a number in radians
atan2() Returns the arc tangent of two variables x and y
atanh() Returns the inverse hyperbolic tangent of a number
base_convert() Converts a number from one number base to another
bindec() Converts a binary number to a decimal number
ceil() Rounds a number 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 a degree value to a radian value
exp() Calculates the exponent of e
expm1() Returns exp(x) - 1
floor() Rounds a number down to the nearest integer
fmod() Returns the remainder of x/y
getrandmax() Returns the largest possible value returned by rand()
hexdec() Converts a hexadecimal number to a decimal number
hypot() Calculates the hypotenuse of a right-angle triangle
intdiv() Performs integer division
is_finite() Checks whether a value is finite or not
is_infinite() Checks whether a value is infinite or not
is_nan() Checks whether a value is 'not-a-number'
lcg_value() Returns a pseudo random number in a range between 0 and 1
log() Returns the natural logarithm of a number
log10() Returns the base-10 logarithm of a number
log1p() Returns log(1+number)
max() Returns the highest value in an array, or the highest value of several specified values
min() Returns the lowest value in an array, or the lowest value of several specified values
mt_getrandmax() Returns the largest possible value returned by mt_rand()
mt_rand() Generates a random integer using Mersenne Twister algorithm
mt_srand() Seeds the Mersenne Twister random number generator
octdec() Converts an octal number to a decimal number
pi() Returns the value of PI
pow() Returns x raised to the power of y
rad2deg() Converts a radian value to a degree value
rand() Generates a random integer
round() Rounds a floating-point number
sin() Returns the sine of a number
sinh() Returns the hyperbolic sine of a number
sqrt() Returns the square root of a number
srand() Seeds the random number generator
tan() Returns the tangent of a number
tanh() Returns the hyperbolic tangent of a number