formula.expert

Constants library

2 values, each with its units, its uncertainty, and where it came from.

Mathematical 2

Square Root of Two exact

2=1.4142135623730951\sqrt{2} = 1.4142135623730951

dimensionlessThe diagonal of a unit square, √2 = 1.41421356237310 — the first number ever proved irrational, and the ratio behind A4 paper.

Square Root of Three exact

3=1.7320508075688772\sqrt{3} = 1.7320508075688772

dimensionlessThe constant of Theodorus, √3 = 1.73205080756888 — the height of an equilateral triangle of side 2 and the ratio in three-phase power.