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
Cosmic Cube and restores the timeline to what it should have been. A Cube is also given to Guardians of the Galaxy member Star-Lord by time-traveling villain Kang the Conqueror to use against Adam Warlock's evil alter ego, the Magus. However, Magus altered perception to make it seem like the Cube's power was used up. Star-Lord used the Cube's last bit of energy for real by subduing the reborn Thanos, rendering it a "cosmic paperweight". Absorbing Man becomes capable of assimilating the abilities of a fraction of a Cube. He is stopped by criminal mastermind Norman Osborn, who uses a magical sword