Float.pow
You're seeing just the function
pow
, go back to Float module for more information.
Specs
Computes base
raised to power of exponent
.
base
must be a float and exponent
can be any number.
However, if a negative base and a fractional exponent
are given, it raises ArithmeticError
.
It always returns a float. See Integer.pow/2
for
exponentiation that returns integers.
Examples
iex> Float.pow(2.0, 0)
1.0
iex> Float.pow(2.0, 1)
2.0
iex> Float.pow(2.0, 10)
1024.0
iex> Float.pow(2.0, -1)
0.5
iex> Float.pow(2.0, -3)
0.125
iex> Float.pow(3.0, 1.5)
5.196152422706632
iex> Float.pow(-2.0, 3)
-8.0
iex> Float.pow(-2.0, 4)
16.0
iex> Float.pow(-1.0, 0.5)
** (ArithmeticError) bad argument in arithmetic expression