Merge branch 'main' of github.com:gajennings/webwork-open-problem-library

Author: gajennings

Contrib/NAU/setFunctionComposition/funcEq3.pg

@@ -10,7 +10,7 @@
 ## Level(4)
 ## MO(1)
 ## KEYWORDS('function equation')
-## date 9/26/2013
+## date 9/7/2018
 
 DOCUMENT();
 loadMacros(

Contrib/NAU/setFunctionComposition/funcEq4.pg

@@ -10,7 +10,7 @@
 ## Level(4)
 ## MO(1)
 ## KEYWORDS('function equation')
-## date 9/26/2013
+## date 9/7/2018
 
 DOCUMENT();
 loadMacros(
@@ -19,8 +19,6 @@ loadMacros(
   "PGcourse.pl"
 );
 
-COMMENT('This is a bit tricky.');
-
 Context("Numeric");
 
 {

OpenProblemLibrary/NAU/setCalcIII/centroidConeSurface.pg

@@ -1,7 +1,7 @@
 ##DESCRIPTION
 ## DBsubject(Calculus - multivariable)
-## DBchapter(Integration of multivariable functions)
-## DBsection(Applications of double integrals)
+## DBchapter(Vector calculus)
+## DBsection(Surface integrals of scalar fields)
 ## Institution(NAU)
 ## Author(Nandor Sieben)
 ## Level(3)

OpenProblemLibrary/NAU/setCalcIII/divergence2D.pg

@@ -28,7 +28,7 @@ TEXT(beginproblem());
 
 Context()->texStrings;
 BEGIN_TEXT
-Let \(F(x,y)=($a x , $b y ) \). Find the area of the closed, bounded region \( R\subseteq \mathbb{R}^2 \) if the flux of \( F \) through the boundary \(\partial R \) of \( R \) is \(\int_{\partial R}F\cdot N\; ds = $c \).
+Let \(F(x,y)=($a x , $b y ) \). Find the area of the closed, bounded region \( R\subseteq \mathbb{R}^2 \) if the flux of \( F \) through the boundary \(\partial R \) of \( R \) is \(\int_{\partial R}F\cdot N = $c \).
 $BR
 area\( (R)= \) \{ ans_rule(35) \}