Name
Math.sqrt() — compute a square root
Synopsis
Math
.
sqrt
(
x
)
Arguments
x
A numeric value greater than or equal to zero.
Returns
The square root of x
. Returns
NaN
if
x
is less than zero.
Description
Math.sqrt()
computes the
square root of a number. Note, however, that you can compute
arbitrary roots of a number with Math.pow()
. For example:
Math
.
cuberoot
=
function
(
x
){
return
Math
.
pow
(
x
,
1
/
3
);
}
Math
.
cuberoot
(
8
);
// Returns 2
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