^He devised ways to calculate areas & volumes, defined pi, circumference & area of a circle, & formulated integral calculus.

^He devised a new & better number system, & also a new way of finding the formulas for areas & volumes of spheres,parabolas, cylinders, & other plane & solid figures.

^Archimedes approximated the value of pi.

^Considered the greatest math

invention is integration, leading to Calculus field.

Math Problem: