In this paper we present neat geometric ways to reason about estimation of square roots and

cube roots that are not accessible with simple routine techniques.

The numerical tables follow with a reciprocal table, multiplication tables for the principal numbers 50-1;15, a table of square roots, and of

cube roots.

He can add, subtract, multiply, divide - and even do square and

cube roots - all in his head.

Indian engineer K K Thomas was recognised for his ability to extract square roots of 10-digit numbers and

cube roots of 15-digit numbers - without using a calculator or pen and paper.

The individual artworks might he called

cube roots, since they all feature six elements branching off from foundational boxes.

We performed a PCA on the

cube roots of the heights of 356 peaks across the original 24 samples.

In Up From Slavery, Washington admonishes supposedly frivolous intellectual pursuits such as French grammar,

cube roots, or "banking and discounting" (94-95) and instead locates the possibilities for racial uplift in purely economic pursuits.

Square roots,

cube roots and power numbers of figures nominated by the pupils flowed staccato-style from Mr Gamm, his eyes closed and jaw clenched in concentration.