Re

Complex.Re($z$) returns a real number equal to the real part of $z$

The following example defines $z$ as a complex number and sets $x$ equal to its real part.

Example.Quanty

-- Complex.Re(z)
z = 3 + 2 * I
x = Complex.Re(z)
 
print("z = ",z)
print("x = Re[z] = ",x)

z = (3 + 2 I)
x = Re[z] = 3