{require lib_complex}

{def z1 {C.new 1 1}}
-> z1 = (1 1)

{C.x {z1}}      -> 1
{C.y {z1}}      -> 1
{C.mod {z1}}    -> 1.4142135623730951
{C.arg {z1}}    -> 0.7853981633974483  // 45°
{C.conj {z1}}   -> (1 -1)
{C.negat {z1}}  -> (-1 -1)
{C.invert {z1}} -> (0.5 -0.4999999999999999)
{C.sqrt {z1}}   -> (1.0986841134678098 0.45508986056222733)
{C.exp {z1}}    -> (1.4686939399158851 2.2873552871788423)
{C.log {z1}}    -> (0.3465735902799727 0.7853981633974483)

{def z2 {C.new 1.5 1.5}}
-> z2 = (1.5 1.5)

{C.add {z1} {z2}} -> (2.5 2.5)
{C.sub {z1} {z2}} -> (-0.5 -0.5)
{C.mul {z1} {z2}} -> (0 3)
{C.div {z1} {z2}} -> (0.6666666666666667 0)