DOCUMENT();

# Load whatever macros you need for the problem
loadMacros("PG.pl",
           "PGbasicmacros.pl",
           "PGchoicemacros.pl",
           "PGanswermacros.pl",
           "PGauxiliaryFunctions.pl",
           "PGgraphmacros.pl",
          );
 
## Do NOT show partial correct answers
$showPartialCorrectAnswers = 0;

BEGIN_TEXT
$BR

Give 4 or 5  significant digits for (floating point) numerical answers.For most
problems when entering numerical answers, you can if you wish enter elementary
expressions such as 2^3 instead of 8, sin(3pi/2) instead of -1, e^(ln(2))
instead of 2, (2+tan(3))*(4-sin(5))^6-7/8 instead of 27620.3413, etc. Here's
the
\{ htmlLink(qq!http://webwork.math.rochester.edu/webwork_system_html/docs/docs/pglanguage/availablefunctions.html!,"list of the functions") \}
which WeBWorK understands.

$PAR
END_TEXT

# This is where you will put the correct answers to check against
# those submitted by the student
ANS( answer_evalutors );  
   
ENDDOCUMENT();