Groups > comp.lang.java.programmer > #38400

Has Android different floats?

From	j4n bur53 <janburse@fastmail.fm>
Newsgroups	comp.lang.java.programmer
Subject	Has Android different floats?
Date	2018-06-24 20:41 +0200
Organization	albasani.net
Message-ID	<pgool7$bru$1@news.albasani.net> (permalink)

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Dear All,

Running a simple test.
** is Math.pow(),
^ is BigInteger.pow() and then BigInteger.doubleValue().

On Java:

   ?- between(15,30,N), X is 10**N-10^N, write(N-X), nl, fail; true.
   15-0.0
   16-0.0
   17-0.0
   18-0.0
   19-0.0
   20-0.0
   21-0.0
   22-0.0
   23-1.6777216E7
   24-0.0
   25-0.0
   26-0.0
   27-0.0
   28-0.0
   29-0.0
   30-0.0

On Adroid:

   ?- between(15,30,N), X is 10**N-10^N, write(N-X), nl, fail; true.
   15-0.0
   16-0.0
   17-0.0
   18-0.0
   19-0.0
   20-0.0
   21-0.0
   22-0.0
   23-0.0
   24-0.0
   25-0.0
   26-0.0
   27-0.0
   28-0.0
   29-1.7592186044416E13
   30-0.0

Has Android different floats?
Tested jdk1.8.0_152 against Android 8.0.0

Best Regards

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Has Android different floats? j4n bur53 <janburse@fastmail.fm> - 2018-06-24 20:41 +0200
  Re: Has Android different floats? Arne Vajhøj <arne@vajhoej.dk> - 2018-06-24 15:21 -0400
    Re: Has Android different floats? bursejan@gmail.com - 2018-06-24 13:31 -0700
      Re: Has Android different floats? bursejan@gmail.com - 2018-06-24 13:35 -0700
        Re: Has Android different floats? bursejan@gmail.com - 2018-06-24 13:44 -0700
        Re: Has Android different floats? Eric Sosman <esosman@comcast-dot-net.invalid> - 2018-06-24 17:28 -0400
          Re: Has Android different floats? bursejan@gmail.com - 2018-06-24 16:08 -0700
            Re: Has Android different floats? bursejan@gmail.com - 2018-06-26 10:29 -0700

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