## Complex

### abs-funktion

Returns the absolute value of the argument.

abs(z)

#### Beskrivning

The `abs` function returns the absolute or numeric value of `z`, commonly written as |z|. `z` may be any numeric expression that evaluates to a real number or a complex number. abs(z) always returns a positive real value.

#### Se även

 Wikipedia MathWorld

### arg-funktion

Returns the argument of the parameter.

arg(z)

#### Beskrivning

The `arg` function returns the argument or angle of `z`. `z` may be any numeric expression that evaluates to a real number or a complex number. arg(z) always returns a real number. The result may be in radianer or degrees depending on the current settings. The angle is always between -π and π. If `z` is a real number, arg(z) is 0 for positive numbers and π for negative numbers. arg(0) is undefined.

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 Wikipedia MathWorld

### conj-funktion

Returns the conjugate of the argument.

conj(z)

#### Beskrivning

The `conj` function returns the conjugate of `z`. `z` may be any numeric expression that evaluates to a real number or a complex number. The function is defined as: conj(z) = re(z) - i*im(z).

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 Wikipedia MathWorld

### re-funktion

Returns the real part of the argument.

re(z)

#### Beskrivning

The `re` function returns the real part of `z`. `z` may be any numeric expression that evaluates to a real number or a complex number.

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 Wikipedia MathWorld

### im-funktion

Returns the imaginary part of the argument.

im(z)

#### Beskrivning

The `im` function returns the imaginary part of `z`. `z` may be any numeric expression that evaluates to a real number or a complex number.

#### Se även

 Wikipedia MathWorld