Solomon Islands 2023 - Number Pi Ag999 1 oz BU

The reverse shows the pi symbol together with the face value of 3.14 dollars. In a circle around the symbol is the pattern of the digits of pi. The obverse depictsthe likeness of Queen Elizabeth II, the inscriptions include the country of issue, the year of issue and the weight of the coin. The limited mintage of the coin is 5 000 pieces.
The number pi is a mathematical constant. Originally defined as the ratio of a circle's circumference to its diameter, it now has various equivalent definitions and appears in many formulas in all areas of mathematics and physics. It is approximately equal to 3.14159. It has been represented by the Greek letter "p" since the mid-18th century, though it is also sometimes spelled out as "pi." It is also called Archimedes' constant.