Omicron is the fifteenth letter of the Greek alphabets. Its upper case symbol is 'O' and lower case symbol is 'o.' Omicron has two parts: 'o' and micron. The 'o' stands for 'small o' and micron (micron) means 'small'., omicron carries the value of 70. The symbol 'o' of omicron Thus, omicron means 'little O'. In Greek numerals is confused with the Latin 'O' and the digit 0. Hence, it is not used in mathematics.
The upper case of omicron was used as 'the Big O Notation' in mathematics. Omicron is used to derive the Greek alphabet 'Omega' (twenty-fourth and the last letter of Greek alphabet). The symbol of omicron is doubled and opened at the top to form the symbol of omega. In Classical Greek, omicron was written as ou (οὖ).
The upper case of omicron was used as 'the Big O Notation' in mathematics. Omicron is used to derive the Greek alphabet 'Omega' (twenty-fourth and the last letter of Greek alphabet). The symbol of omicron is doubled and opened at the top to form the symbol of omega. In Classical Greek, omicron was written as ou (οὖ).
