abs | PHP 3.0
int abs(int number) |
Returns the absolute value of the number.

acos | PHP 3.0
float acos(float number) |
Returns the arc cosine of the number in radians.

acosh | PHP 4.1.0
float acosh(float number) |
Returns the inverse hyperbolic cosine of the number (i.e., the value whose hyperbolic cosine is number).

asin | PHP 3.0
float asin(float number) |
Returns the arc sine of the number in radians.

asinh | PHP 4.1.0
float asinh(float number) |
Returns the inverse hyperbolic sine of the number (i.e., the value whose hyperbolic sine is number).

atan2 | PHP 3.0.5
float atan2(float y, float x) |
Returns the arc tangent of y / x , with the resulting quadrant determined by the signs of y and x.

atan | PHP 3.0
float atan(float number) |
Returns the arc tangent of the number in radians.

atanh | PHP 4.1.0
float atanh(float number) |
Returns the inverse hyperbolic tangent of the number (i.e., the value whose hyperbolic tangent is number).

base_convert | PHP 3.0.6
string base_convert(string number, int frombase, int tobase) |
Converts a number in a string from any base to any other base (where both bases are less than or equal to 36).

bindec | PHP 3.0
int bindec(string binary_number) |
Returns the decimal equivalent of a binary number.

ceil | PHP 3.0
float ceil(float number) |
Returns the next highest integer value of the number.

cos | PHP 3.0
float cos(float number) |
Returns the cosine of the number in radians.

cosh | PHP 4.1.0
float cosh(float number) |
Returns the hyperbolic cosine of the number.

decbin | PHP 3.0
string decbin(int decimal_number) |
Returns a string containing a binary representation of the number.

dechex | PHP 3.0
string dechex(int decimal_number) |
Returns a string containing a hexadecimal representation of the number.

decoct | PHP 3.0
string decoct(int decimal_number) |
Returns a string containing an octal representation of the number.

deg2rad | PHP 3.0.4
float deg2rad(float number) |
Converts the number in degrees to the radian equivalent.

exp | PHP 3.0
float exp(float number) |
Returns e raised to the power of the number.

expm1 | PHP 4.1.0
float expm1(float number) |
Returns exp(number) - 1 , computed in a way that is accurate even when the value of number is close to zero.

floor | PHP 3.0
float floor(float number) |
Returns the next lowest integer value from the number.

fmod | PHP 4.1.0
float fmod(float x, float y) |
Returns the remainder of dividing x by y as a float.

getrandmax | PHP 3.0
int getrandmax(void) |
Returns the maximum value a random number can have.

hexdec | PHP 3.0
int hexdec(string hexadecimal_number) |
Returns the decimal equivalent of the hexadecimal number.

is_finite | PHP 4.1.0
bool is_finite(float val) |
Returns whether argument is finite.

is_infinite | PHP 4.1.0
bool is_infinite(float val) |
Returns whether argument is infinite.

is_nan | PHP 4.1.0
bool is_nan(float val) |
Returns whether argument is not a number.

lcg_value | PHP 4.0
float lcg_value( ) |
Returns a value from the combined linear congruential generator.

log10 | PHP 3.0
float log10(float number) |
Returns the base-10 logarithm of the number.

log1p | PHP 4.1.0
float log1p(float number) |
Returns log(1 + number) , computed in a way that is accurate even when the value of number is close to zero.

log | PHP 3.0
float log(float number) |
Returns the natural logarithm of the number.

max | PHP 3.0
mixed max(mixed arg1[, mixed arg2[, mixed ...]]) |
Return the highest value in an array or a series of arguments.

min | PHP 3.0
mixed min(mixed arg1[, mixed arg2[, mixed ...]]) |
Returns the lowest value in an array or a series of arguments.

mt_getrandmax | PHP 3.0.6
int mt_getrandmax(void) |
Returns the maximum value a random number from Mersenne Twister can have.

mt_rand | PHP 3.0.6
int mt_rand([int min, int max]) |
Returns a random number from Mersenne Twister.

mt_srand | PHP 3.0.6
void mt_srand([int seed]) |
Seeds Mersenne Twister random number generator.

octdec | PHP 3.0
int octdec(string octal_number) |
Returns the decimal equivalent of an octal string.

pi | PHP 3.0
float pi(void) |
Returns an approximation of pi.

pow | PHP 3.0
number pow(number base, number exponent) |
Returns base raised to the power of exponent (as an integer result when possible).

rad2deg | PHP 3.0.4
float rad2deg(float number) |
Converts the radian number to the equivalent number in degrees.

rand | PHP 3.0
int rand([int min, int max]) |
Returns a random number.

round | PHP 3.0
float round(float number[, int precision]) |
Returns the number rounded to specified precision.

sin | PHP 3.0
float sin(float number) |
Returns the sine of the number in radians.

sinh | PHP 4.1.0
float sinh(float number) |
Returns the hyperbolic sine of the number.

sqrt | PHP 3.0
float sqrt(float number) |
Returns the square root of the number.

srand | PHP 3.0
void srand([int seed]) |
Seeds random number generator.

tan | PHP 3.0
float tan(float number) |
Returns the tangent of the number in radians.

tanh | PHP 4.1.0
float tanh(float number) |
Returns the hyperbolic tangent of the number.