Cube root polar angle by three in order to define a cube root. With this definition, the principal cube root of a negative number is a complex number, and for instance will not be −2, but rather . This difficulty can also be solved by considering the cube root as a multivalued function: if we write the original complex number "x" in three equivalent forms, namely The principal complex cube roots of these three forms are then respectively Unless , these three complex numbers are distinct, even though the three representations of "x" were equivalent. For example, may then be calculated to
The Cube (building) useful information for residents and present 24 hours. The residents in West Wing is strictly restricted to use concierge service offered by the Cube, even though a concierge desk is present at the entrance of West Wing but never taken in operation as concierge service. The third element is the two storey crown that sits on top of the cube element. It is two storeys in height and will house facilities for the boutique hotel and a rooftop restaurant with skybar, offering panoramic views of the city centre. Unlike the rest of the Cube, the crown is constructed from a