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### Im

#### Synopsis

    function Im (z: Complex): Real;

#### Description

`Im` extracts the imaginary part of the complex number `z`. The result is a real value.

#### Conforming to

`Im` is an ISO 10206 Extended Pascal extension.

#### Example

    program ImDemo;
    var
      z: Complex;
    begin
      z := Cmplx (1, 2);  { 1 + i * 2 }
      WriteLn (Im (z) : 0 : 5)  { 2.00000 }
    end.

#### See also

Cmplx, Re, Arg.