File Exchange

image thumbnail

IEEE 754 binary representation

version 1.1 (1.67 KB) by

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



View License

[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).

Comments and Ratings (7)

Could someone help me in using this code.
I tried using this [a,b,c]=ieee754(-176.234,'dec');
but it's displaying it as error.

Royi Avital

Is there a version to handle Single Precision numbers?

Excellent. Very useful when teaching students about floating point arithmetic.

Derek O'Connor


Paul (view profile)

A request: could you add single conversion as well!?



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

MATLAB Release
MATLAB 7.8 (R2009a)

Download apps, toolboxes, and other File Exchange content using Add-On Explorer in MATLAB.

» Watch video