1E2

1E2 is a numeric expression in scientific notation representing the value 1 × 10^2, which equals 100. The E (or e) denotes the exponent of base 10, and the format is used to compactly write very large or very small numbers.

Used across science, engineering, computing, and data presentation, 1E2 communicates a magnitude without long strings of zeros. In most programming languages, 1e2 is a floating-point literal whose value is 100.0; the letters E and e are treated equivalently, so 1E2, 1e2, 1E+2, and 1e+2 denote the same quantity, while 1E-2 equals 0.01.

Variations and considerations: Some environments require a decimal point (such as 1.0e2) or impose formatting rules, and in spreadsheets the interpretation may depend on locale or data type. The notation is commonly used in input, output, and data interchange to ensure compact representation. Engineering notation and other contexts may use exponents grouped in threes or alternate conventions, but 1E2 directly expresses 100 in base-10 exponent notation.

In practice, 1E2 is a concise way to denote a power-of-ten value, ensuring readability and ease of parsing across scientific and computational workflows. See also scientific notation, floating-point arithmetic, and exponent notation.