Please use matlab Write a function file that will convert fr

Please use matlab. Write a function file that will convert from IEEE-754 floating-point representation to decimal.

Solution

function b = float2dec(f)
%This function converts a floating point number to a binary string.
%
%Input: f - floating point number, either double or single
%Output: b - string of \"0\"s and \"1\"s in IEEE 754 floating point format
%
%Floating Point Binary Formats
%Single: 1 sign bit, 8 exponent bits, 23 significand bits
%Double: 1 sign bit, 11 exponent bits, 52 significand bits
%
%I allow the use and modification of this code for any purpose.

%Input checking
if ~isfloat(f)
disp(\'Input must be a floating point number.\');
return;
end

hex = \'0123456789abcdef\'; %Hex characters

h = num2hex(f);   %Convert from float to hex characters

hc = num2cell(h); %Convert to cell array of chars

nums = cellfun(@(x) find(hex == x) - 1, hc); %Convert to array of numbers

bins = dec2bin(nums, 4); %Convert to array of binary number strings

b = reshape(bins.\', 1, numel(bins)); %Reshape into horizontal vector