What is sinh() in PHP?
The sinh() function returns the hyperbolic sine of a number in radians.
The illustration below shows the mathematical representation of the sinh() function.
Syntax
sinh(float $num): float
Parameter
This function requires a number that represents an angle in radians as a parameter.
The following formula is used to convert degrees to radians.
radians = degrees * ( M_PI / 180.0 )
Return value
sinh() returns a number’s hyperbolic sine (in radians), which is sent as a parameter.
-
If the value of
numisNaN not a number NaN. -
If the value of
numis positive infinity, then the value returned is positive infinity. -
If the value of
numis negative infinity, then the value returned is negative infinity.
Code
<?php#Positive number in radiansecho ("sinh(2.3): ");echo (sinh(2.3));?><?php#Negative number in radiansecho ("sinh(-2.3): ");echo (sinh(-2.3));echo ("\n");?><?php#converting the degrees angle into radians and then applying sinh()#degrees = 90echo ("sinh(90 * (M_PI / (180))): ");echo (sinh(90 * (M_PI / (180))));?>
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