IEEE 754 binary representation

Converts a double into its underlying 64-bit representation, including sign, exponent, and mantissa.

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[S,E,F] = IEEE754(X) returns the sign bit, exponent, and mantissa of an IEEE 754 floating point value X, expressed as binary digit strings of length 1, 11, and 52, respectively.

X is equal to (in exact arithmetic and decimal notation)

(-1)^S * (1 + F/(2^52)) * 2^(E-1023),

except for special values 0, Inf, NaN, and denormalized numbers (between 0 and REALMIN).

Cite As

Toby Driscoll (2026). IEEE 754 binary representation (https://in.mathworks.com/matlabcentral/fileexchange/25326-ieee-754-binary-representation), MATLAB Central File Exchange. Retrieved .

General Information

MATLAB Release Compatibility

  • Compatible with any release

Platform Compatibility

  • Windows
  • macOS
  • Linux
Version Published Release Notes Action
1.1.0.0

Used NUM2HEX in place of SPRINTF, per suggestion by Andreas Luettgens.

1.0.0.0