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Keeping only one digit after the dot.

  1. Mar 31, 2005 #1

    Is there a mathematical way to get rid of all the digits after the dot except one? 10.292288.. how do i just make it 10.2?
  2. jcsd
  3. Mar 31, 2005 #2
    floor(10x)/10, perhaps?

    See this for information on the floor function if it is unfamiliar.
  4. Mar 31, 2005 #3


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    Homework Helper

    U mean rounding...?BTW,oif u mean rounding,then your example could go both ways:rounding a decimal more which would mean 10.3,or less,which would mean 10.2

    If u mean "significative digits",then the whole mechanism is not that simple as rounding decimals.In your case,u gave a # with 8 sign.digits and u want it with 3 only.In this case,the answer is correct.

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