I am running a code on Mathematica (on Mac OS X) that takes high values for some of the variables. In Notebook, I set the global precision using the following code (which is well documented!) at the top of my 'test_script.m' script to get desired precise results:
$PreRead = (# /. s_String /; StringMatchQ[s, NumberString] && Precision@ToExpression@s == MachinePrecision :> s <> "`50." &);
It works fine as long as I am using Notebook. However, when I try to run it using MathematicaScript Kernel using the following command line argument:
./MathematicaScript -script ~/test_script.m
; I am unable to set the precision and the computation gives inaccurate results. Just to make sure, I gave smaller test values to variables and both processes yielded exactly the similar results. This has led me to believe that in MathematicaScript Kernel, the $PreRead command is not effective.
So, Q: How can I set the precision to my desired value in this case; i.e. achieve the same result in terminal as I do in Notebook? Also, why is there a difference when using a Kernel compared to the Notebook.