Difference between revisions of "DifferenceQuotient1"

Revision as of 15:49, 16 June 2013

Click to enlarge

This PG code shows how to require students to simplify a difference quotient.

PG problem file	Explanation
Problem tagging data	Problem tagging:
DOCUMENT(); loadMacros( "PGstandard.pl", "MathObjects.pl", "parserDifferenceQuotient.pl", ); TEXT(beginproblem());	Initialization: We need to include the macros file `parserDifferenceQuotient.pl`.
Context("Numeric"); $limit = DifferenceQuotient("2*x+h","h"); $fp = Compute("2 x");	Setup: The routine `DifferenceQuotient("function","variable")` takes the simplified function and a variable name. If the variable is omitted, `dx` is used by default.
Context()->texStrings; BEGIN_TEXT Simplify and then evaluate the limit. $BR $BR $ \displaystyle \frac{d}{dx} \big( x^2 \big) = \lim_{h \to 0} \frac{(x+h)^2-x^2}{h} = \lim_{h \to 0} \big( $ \{ ans_rule(15) \} $ \big) = $ \{ ans_rule(15) \} END_TEXT Context()->normalStrings;	Main Text:
$showPartialCorrectAnswers = 1; ANS( $limit->cmp() ); ANS( $fp->cmp() );	Answer Evaluation:
Context()->texStrings; BEGIN_SOLUTION Solution explanation goes here. END_SOLUTION Context()->normalStrings; COMMENT('MathObject version.'); ENDDOCUMENT();	Solution:

@@ Line 5: / Line 5: @@
 This PG code shows how to require students to simplify a difference quotient.
 </p>
-* Download file: [[File:DifferenceQuotient1.txt]] (change the file extension from txt to pg when you save it)
+* File location in OPL: [https://github.com/openwebwork/webwork-open-problem-library/blob/master/OpenProblemLibrary/FortLewis/Authoring/Templates/DiffCalc/DifferenceQuotient1.pg NationalProblemLibrary/FortLewis/Authoring/Templates/DiffCalc/DifferenceQuotient1.pg]
-* File location in NPL: <code>NationalProblemLibrary/FortLewis/Authoring/Templates/DiffCalc/DifferenceQuotient1.pg</code>
@@ Line 136: / Line 135: @@
 Context()->texStrings;
 BEGIN_SOLUTION
-${PAR}SOLUTION:${PAR}
 Solution explanation goes here.
 END_SOLUTION