Unlimited Decimal/Fractional Binary Converter

Conversion to and from a decimal number and a fractional binary number. No limitations on order of magnitude/number of significant digits.
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Updated Sat, 19 Nov 2022 22:12:19 +0000

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Conversion to and from a decimal number and a fractional binary number. No limitations on order of magnitude and number of significant digits when the decimal number is supplied as a string. You may optionally set the number of significant bits returned or used in conversion. Requires Java.
Example:
% Make a negative number with 250 significant digits and 150 decimal places
decStr = ['-', regexprep([num2str(randi([0 9], 1, 100)), '.', ...
num2str(randi([0 9], 1, 150))], ' ', '')]
% Get the fractional binary number
binStr = dec2fbin(decStr)
% Convert the binary number back to a decimal number
fbin2dec(binStr)
% A double has 53 significant bits, convert with this limitation
fbin2dec(binStr, 53)
% Compare with MATLAB
str2double(decStr)

Cite As

Patrik Forssén (2024). Unlimited Decimal/Fractional Binary Converter (https://www.mathworks.com/matlabcentral/fileexchange/120878-unlimited-decimal-fractional-binary-converter), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2020a
Compatible with any release
Platform Compatibility
Windows macOS Linux

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Decimal-Binary Converter Version 1.0

Version Published Release Notes
1.0.0