Correspondence

摘要

A Fortuitous Value On obtaining his brand new calculator, a sixth form student decided to enter a complicated-looking 'random' calculation, to try out the functionality, and was astonished to find that dividing his answer by 1 000 000 was all that was needed to give him π correct to 4 significant figures:7 14~(1/2)×6~9/44 ×7 3~(1/2)+3 12~(1/2)/43 ÷1000000=3.141276453...