Definition and UsageThe asinh() function calculates inverse of hyperbolic sine of given parameter. In other words, the return value of asinh() is hyperbolic sine of given parameter. A inverse hyperbolic sine function is defined asasinh(x) = log(x+sqrt(pow(x, 2)+1))This function returns a float value.Syntaxasinh( float $arg ) : floatParametersSr.NoParameter & Description1argA ... Read More

Definition and UsageThe acosh() function returns the inverse hyperbolic cosine ratio of given angle in of given parameter. In other words, the return value of asinh() is hyperbolic sine of given parameter. A hyperbolic inverse hyperbolic cosine function is defined as −.acosh(x) = log(x+sqrt(pow(x, 2)-1))This function returns a float value.Syntaxacosh ... Read More

Definition and UsageThe acos() function Returns the arc cosine or cos inverse of arg in radians. acos() is the inverse function of cos(). Therefore if cos(x)=y, acos(y)=x.For example, cos(pi/2)=0 and acos(0)=1.57079633 rad which is equal to pi/2.This function returns a float value.Syntaxacos ( float $arg ) : floatParametersSr.NoParameter & Description1argA ... Read More

Definition and UsageThe abs() function is an in-built function in PHP iterpreter. This function accepts any number as argument and returns a positive value, disregarding its sign. Absolute value of any number is always positive.This function always returns positive number.Syntaxabs( mixed $num)ParametersSr.NoParameter & Description1numThis parameter stores a value whose absolute ... Read More