CM>
  >         float temp=26.4;
  >
  > My system tells me the value is 26.39996.
CM>

  Think about how floating point works.  It uses binary, and has only a
  finite number of binary places available after the "binary point".

  So, how many binary digits does it take to represent 2/5 ?

  For an analogy, how many decimal digits does it take to represent 1/3,
  and how close are you going to get if you are only allowed 5, say ?

  Implementing an infinite precision data type that can store values of
  fractions that have infinite binary expansion, and irrational numbers,
  is left as an exercise to the reader ...

  > JdeBP <
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