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<p class="MsoNormal">Also, I wonder if you’re typing:</p>
<p class="MsoNormal"><span style="font-family:"Courier New"">> 5 mod 2<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">This does give a FlexibleContexts error. You should type either:</p>
<p class="MsoNormal"><span style="font-family:"Courier New"">> mod 5 2<o:p></o:p></span></p>
<p class="MsoNormal">or</p>
<p class="MsoNormal"><span style="font-family:"Courier New"">> 5 `mod` 2<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">(or, using mod’ as suggested):</p>
<p class="MsoNormal"><span style="font-family:"Courier New"">> 5.5 `mod'` 1.3<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">You can read about prefix and infix notation <a href="http://learnyouahaskell.com/starting-out">
here</a>.</p>
<p class="MsoNormal"><br>
David.</p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" style="border:none;padding:0cm"><b>From: </b><a href="mailto:bob@redivi.com">Bob Ippolito</a><br>
<b>Sent: </b>20 February 2021 23:11<br>
<b>To: </b><a href="mailto:beginners@haskell.org">The Haskell-Beginners Mailing List - Discussion of primarily beginner-level topics related to Haskell</a><br>
<b>Subject: </b>Re: [Haskell-beginners] Using Fractional Type</p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I think what you're looking for is the mod' function from Data.Fixed. The mod function only works with Integral types, FlexibleContexts wouldn't be helpful for this.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Sat, Feb 20, 2021 at 12:00 PM A. Mc. <<a href="mailto:47dragonfyre@gmail.com">47dragonfyre@gmail.com</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal">Hello,<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I need to create a function that does: mod (recip x) y. However, I am getting all kinds of errors with the type signature. Is there a better way to use Fractional type than needing to enable FlexibleContexts? What do I need to do to
still make use of Haskell's type system, but also still be able to perform operations such as reciprocal (and division into fractions for that matter).<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Thanks in advance and thank you for your time.<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:4.8pt">_______________________________________________<br>
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<a href="http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners" target="_blank">http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners</a><o:p></o:p></p>
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