Cube of Space a cube. Cube of Space The Cube of Space is an occult concept that was popularized by the prominent occultist Paul Foster Case. The Cube of Space associates the three axes of the cube, the center point of the cube, the six sides of the cube, and the twelve edges of the cube, with the 22 letters of the hebrew alphabet. The Cube of Space is based upon two verses in the proto-kabbala text called the Sepher Yetzirah. One of those verses is in chapter 4 and the other verse is in chapter 5. The verse in chapter 4 associates
Cube root of a number "x" are the numbers "y" which satisfy the equation For any real number "x", there is "one" real number "y" such that "y" = "x". The cube function is increasing, so does not give the same result for two different inputs, plus it covers all real numbers. In other words, it is a bijection, or one-to-one. Then we can define an inverse function that is also one-to-one. For real numbers, we can define a unique cube root of all real numbers. If this definition is used, the cube root of a negative number is a negative number.