sqrt(x) computes the square root of x.
FORTRAN 77 and later
Elemental function
result = sqrt(x)
x - The type shall be real or complex.The return value is of type real or complex. The kind type parameter is the same as x.
program test_sqrt
real(8) :: x = 2.0_8
complex :: z = (1.0, 2.0)
x = sqrt(x)
z = sqrt(z)
end program test_sqrt