I imagine that in this program when Double isn't specified the compiler
doesn't assign a "hardware optimized" number type. Consequently it isn't
using the specialized functions that are used for 64-bit floating point
numbers. When the program specifies it is receiving the "Double" values,
then it does use the "hardware optimized" data types.
On Wed, May 4, 2016 at 3:12 PM, Ben Rogalski
I have found that using the type Double in a type signature causes my program to run much faster than if I use a type variable with a Num constraint.
Is this common, and if so, why is explicitly using Double faster?
_______________________________________________ Beginners mailing list Beginners@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners