IEEE 754
The Wikipedia page for IEEE 754 provides an overview of the standardized binary floating-point arithmetic format known as IEEE 754. The page explains the history, design, and specifications of this format, which is widely used in modern computers and programming languages.
About
The page explains the history, design, and specifications of this format, which is widely used in modern computers and programming languages. It starts by presenting the development of floating-point arithmetic and the need for a standardized format to ensure interoperability across different systems. The page then outlines the design and characteristics of IEEE 754, including the basic numeric formats, precision levels, and rounding modes. It discusses the representation of both floating-point numbers and special values such as positive and negative zero, infinity, and NaN (not-a-number). The binary format and its components, such as the sign bit, exponent, and mantissa, are explained in detail. The page also covers the various operations defined in IEEE 754, such as addition, subtraction, multiplication, and division. It highlights the features and limitations of these operations, including issues related to accuracy, rounding, and rounding errors. The concept of gradual underflow is introduced, explaining how tiny numbers are handled to avoid drastic precision loss. Furthermore, the page addresses the potential pitfalls and challenges of using IEEE 754 in programming, including issues related to comparing floating-point numbers, rounding discrepancies, and the impact of compiler optimizations. Special attention is given to the accuracy and precision trade-offs when performing mathematical computations. Lastly, the Wikipedia page touches upon the legacy and variations of IEEE 754, with specific references to the single-precision (32-bit) and double-precision (64-bit) formats. It also mentions the more recent additions and improvements made in the revised versions of the standard. Overall, the Wikipedia page on IEEE 754 provides a comprehensive and informative overview of this widely used floating-point arithmetic format, discussing its design, specifications, operations, challenges, and variations.