Talk:Convert decimal number to rational: Difference between revisions
Talk:Convert decimal number to rational (view source)
Revision as of 22:08, 13 August 2012
, 11 years ago→inaccuracies
m (→inaccuracies: added comment about result from an arithmetic operations, not just expressing a FP number. -- ~~~~) |
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:::::: Yes, I wasn't talking about the ''result'' of an arithmetic operation (notably division), just a floating-point number. Sorry 'bout any confustion. -- [[User:Gerard Schildberger|Gerard Schildberger]] 21:41, 13 August 2012 (UTC)
::::::: That was sort of my point -- that floating point numbers (regardless of the base used) are necessarily approximations in a wide variety of contexts. When dealing with measurements of distance, for example, this is assumed (since the measurements themselves are going to be approximations). That said, the task description just says "decimal number" and not "floating point". Still... the same holds there: finite length decimal numbers can only approximate fractions whose denominators are not representable exactly as powers of 2 and 5. --[[User:Rdm|Rdm]] 22:08, 13 August 2012 (UTC)
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