Math
Execute and test PHP functions with an mathmatic background. These functions use and except only float and integer values.
abs
Returns the absolute value of $number.
acos
Returns the arc cosine of arg in radians. acos() is the complementary function of cos(), which means that a==cos(acos(a)) for every value of a that is within acos()' range.
acosh
Returns the inverse hyperbolic cosine of $arg, i.e. the value whose hyperbolic cosine is $arg.
asin
Returns the arc sine of $arg in radians. asin() is the complementary function of sin(), which means that a==sin(asin(a)) for every value of a that is within asin()'s range.
asinh
Returns the inverse hyperbolic sine of $arg, i.e. the value whose hyperbolic sine is $arg.
atan2
This function calculates the arc tangent of the two variables $x and $y. It is similar to calculating the arc tangent of $y / $x, except that the signs of both arguments are used to determine the quadrant of the result.
atan
Returns the arc tangent of arg in radians. atan() is the complementary function of tan(), which means that a==tan(atan(a)) for every value of a that is within atan()'s range.
atanh
Returns the inverse hyperbolic tangent of $arg, i.e. the value whose hyperbolic tangent is $arg.
base_convert
base_convert() converts a number between arbitrary bases.
bindec
Returns the decimal equivalent of the binary number represented by the $binaryString argument.
decbin
Returns a string containing a binary representation of the given $number argument.
dechex
Returns a string containing a hexadecimal representation of the given $number argument.
decoct
Returns a string containing an octal representation of the given $number argument.
hexdec
Returns the decimal equivalent of the hexadecimal number represented by the $hexString argument.
mt_rand
Many random number generators of older libcs have dubious or unknown characteristics and are slow.
octdec
Returns the decimal equivalent of the octal number represented by the $octalString argument.
round
Rounds a float.
tan
tan() returns the tangent of the $arg parameter. The $arg parameter is in radians.
tanh
Returns the hyperbolic tangent of $arg, defined as sinh($arg)/cosh($arg).