Angle Corresponding to a Complex Value

Subchapters

Angle Corresponding to a Complex Value

Syntax	`angle(`z`)`
See Also	atan2 , log , exp

Description
Returns a double precision matrix containing the element-by-element angle between the direction vector



     ( Re(z), Im(z) )

where and the real axis where Re(z) and Im(z) above are the real and imaginary parts of the complex elements of z. The elements of the result are between -pi and +pi.

Example




     angle(1 + 1i0)

returns




     0.785398

If you enter




     angle( [-1r0, 1i0, 1r0, -1i0] )

returns




     [ 3.14159 , 1.5708 , 0 , -1.5708 ]