How to print to a text file in GAP without line breaks?
Minimal working example
x:=Indeterminate(Rationals,"x");
f:=Sum([1..1000],i->x^i);
PrintTo("~/temp.txt",f);
It prints to the temp.txt
following:
x^1000+x^999+x^998+x^997+x^996+x^995+x^994+x^993+x^992+x^991+x^990+x^989+x^988\
+x^987+x^986+x^985+x^984+x^983+x^982+x^981+x^980+x^979+x^978+x^977+x^976+x^975\
+x^974+x^973+x^972+x^971+x^970+x^969+x^968+x^967+x^966+x^965+x^964+x^963+x^962\
+x^961+x^960+x^959+x^958+x^957+x^956+x^955+x^954+x^953+x^952+x^951+x^950+x^949\
[snip]
How can I instead get it to print on one line in a text file?
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1 answer
This is a common need and the solution is called SetPrintFormattingStatus
. See its documentation online
or just type ?SetPrintFormattingStatus
in the GAP prompt to see the documentation.
Note that you will have to use streams in this case, this does not work with text files directly. OutputTextFile
(documented right after
SetPrintFormattingStatus
) is what you need to use.
In the above example use
x:=Indeterminate(Rationals,"x");
f:=Sum([1..1000],i->x^i);
output := OutputTextFile( "poly", false );;
SetPrintFormattingStatus(output, false);
PrintTo(output,f);
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