title: Represent Double as floating point binary string using built-in functions
body: <p>I'm using VB.NET, writing a winforms application where I'm trying to convert from a denary real number to a signed floating point binary number, as a string representation. For example, 9.125 would become "0100100100000100" (the first ten digits are the significand and the last six digits the exponent.).</p>
  
  <p>I can write a function for this if I have to, but I'd rather not waste time if there's a built-in functionality available. I know there's some ToString overload or something that works on Integers, but I haven't been able to find anything that works on Doubles.</p>