scala - How to overwrite NaN or Infinity result when performing arithmetic on Double? -

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I am running a calculation on a group of numbers and returns some result of the results of the result NaN After checking or infinity , I came to know that the root cause is due to the arithmetic division below: 

  object doublefin {println ("in scalable worksheet Welcome ") // // Welcome to Scala Worksheet Val D1 = 0.0 /> & gt; D1: Double = 0.0Wall D2 = 0.0 / // & gt; D2: double = 0.0 wal d = d1 / d2 // & gt; D: Double = Nine Vel I1 = 1.0 // & gt; I1: Double = 1.0 Wall i2 = 0.0 // & gt; I2: double = 0.0 wal i = i1 / i2 // & gt; I: double = infinity wall o1 = 0 // & gt; O1: Int = 0 Well O2 = 0 // & gt; O2: int = 0 well o = o1 / o2 / // & gt; Java.lang.ArithmeticException: / by zero}

I think why NaN and infinity are coming back in these cases There is a math question but it is interesting that 0/0 returns a arithmetic exception while the 0.0 / 0.0 does not?

I 'Using the result of these calculations to descend like a minaret: NaN & amp; Infinity The result is in those elements that I want to finalize them.

How can I ensure that NaN or infinity for any calculation that is shown when it is sorted ? Can I check NaN or infinity inside the result of the calculation and if it is satisfied then 0.0 : 

  if (D == Double Infinity || D == Double.NAN) {return 0.0}

Nyan and one exception is actually a more general question, which has been explained.

It is not clear how are you sorting your way, but by default the positive and negative infinite are in the correct type order, and NaN the last (in ascending order) Comes to: 

  scala & gt; List (Double Positive Infiniti, Double NGT Infinity, Double. NN, 0.0, -1.0, 2.0). Sets Race 15: List [Double] = List (-Infinity, -1.0, 0.0, 2.0, Infinity, NN) < / Code>

Any easy way to modify behavior will be to map and match a list before sorting. 

  val list = list (double.postinfiniti, double.ngt infiniti, double_n, 0.0, -1.0, 2.0) list.map {case d if (d.isNaN) = & gt; 0.0 / / or the price you want Case D. If (DICNGIFINITY) = & gt; 0.0 / / or the price you want Case D. (D.IspceInfinity) => 0.0 / / or the value you want is case D = & gt; D} first in the ascending order,  double negative infinity  comes first, then all ascertained real numbers, then  is repeated. With PositiveInfinity   NaN  if you want  both   PositiveInfinity  and  NegativeInfinity  as well as  NaN  to come in the last order, you can map them all to  double. NGTifinity .

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