meaning of yield in the english dictionary yield in british english yieldverb yield verb produce the investigation yielded some unexpected results favourable weather yielded a good crop the process yields oil for industrial use burning waste yields energy that can be used for electric power or heating
The number Ï is a mathematical constant, the ratio of a circle 's circumference to its diameter, commonly approximated as 3.14159. It has been represented by the Greek letter  Ï  since the mid-18th century, though it is also sometimes spelled out as  pi  (/paÉª/).he symbol used by mathematicians to represent the ratio of a circle's circumference to its diameter is the lowercase Greek letter Ï, sometimes spelled out as pi. In English, Ï is pronounced as pie (/paÉª/ , paÉª).
Pi is a number that is approximately equal to 3.14. It is the number you get if you divide the circumference of any circle by its diameter.It's the same for all circles.sually in math we write pi with the Greek letter Ï, which is the letter p in Greek. You pronounce it pie, like apple pie. It is called pi because Ï is the first letter of the Greek word perimetros or perimeter. But it was not the Ancient Greeks who first discussed the value of pi.