Compute
e^x
for each element of x.To compute the matrix exponential, see Linear Algebra.
See also: log.
Compute
exp (
x) - 1
accurately in the neighborhood of zero.See also: exp.
Compute the natural logarithm,
ln (
x)
, for each element of x.To compute the matrix logarithm, see Linear Algebra.
Return the real-valued natural logarithm of each element of x.
If any element results in a complex return value
reallog
aborts and issues an error.
Compute the base-2 logarithm of each element of x.
If called with two output arguments, split x into binary mantissa and exponent so that
1/2 <= abs(f) < 1
and e is an integer. Ifx = 0
,f = e = 0
.
With one input argument, compute 2 .^ x for each element of x.
With two input arguments, return f .* (2 .^ e).
Compute the exponent for the smallest power of two larger than the input.
For each element in the input array x, return the first integer n such that 2^n ≥ abs (x).
Compute the real-valued, element-by-element power operator.
This is equivalent to x
.^
y, except thatrealpow
reports an error if any return value is complex.
Compute the square root of each element of x.
If x is negative, a complex result is returned.
To compute the matrix square root, see Linear Algebra.
Return the real-valued square root of each element of x.
If any element results in a complex return value
realsqrt
aborts and issues an error.
Compute the real cube root of each element of x.
Unlike x
^(1/3)
, the result will be negative if x is negative.See also: nthroot.