double division rounding error

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#8534

From: Ron Reynolds
Date: Mon, 12 Mar 2001 22:11

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1261 bytes

this i don't get, especially since the numbers are so simple.
the following code:
  double d1 = 2.05, d2 = 0.05;
  System.out.println("d1/d2 = " + d1/d2);
produces:
  d1/d2 = 40.99999999999999
if i cast the result to "float" i can get 41.0, which is nice,
but my question is why this sort of rounding error pops up with
such low-precision numbers and what's the accepted way of
handling this sort of problem?
thanks.
.............ron.

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