import complex
var a: TComplex = (1.0,1.0)
var b: TComplex = (3.1415,1.2)

echo ("a    : " & $a)
echo ("b    : " & $b)
echo ("a + b: " & $(a + b))
echo ("a * b: " & $(a * b))
echo ("1/a  : " & $(1/a))
echo ("-a   : " & $(-a))