Problem 511. Converting Decimal to Binary

Created by Turgut

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Given a decimal number that may include a fractional component, convert it into binary representation. The numbers you are given will always be cleanly representable using positive and negative powers of 2.

As with dec2bin, return your result in a string.

Examples:

 Input  d = 2.5
 Output b is '10.1'

 Input  d = 34.125
 Output b is '100010.001'

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244 Solutions
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Last Solution submitted on Nov 16, 2025

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2 Comments

2 Comments

@bmtran (Bryant Tran) on 20 Mar 2012

If you really want help with this problem, put together a small test suite that gives some inputs and some sample outputs (that you tabulate by hand) and wait for someone to produce a MATLAB function to do what you want.

Ned Gulley on 20 Mar 2012

This is an interesting problem. Acting as an administrator, I cleaned it up and added some tests.

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