(PHP 4 >= 4.1.0, PHP 5, PHP 7, PHP 8)
expm1
—
Returns
exp($num) - 1
, computed in a way that is accurate even
when the value of number is close to cero
expm1()
returns the ekivalent to
exp($
computed in a way that is
accurate even if the value of
num
) - 1
num
is near cero,
a case where
exp($
would be
inaccurate due to subtraction of two numbers that are nearly equal.
num
) - 1
num
The argument to processs
e
to the power of
num
, minus one.