highDouble

highDouble(X)

X is a vector/scalar which must be 16-byte data type.

It returns the higher 8 bytes of X, which is of DOUBLE type.

$ x=1 2 3 4
y=4 3 2 1
points = point(x, y)
x1 = highDouble(points)
// output
[4,3,2,1]

Get the imaginary part of a complex number:

a=complex(2, 5)
highDouble(a)
// output
5