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Problem Seed:

This problem illustrates how you can embed JavaScript code in a WeBWorK example to create an interactive homework problem that could never be provided by a text book.

WeBWorK can use existing JavaScript and Java code to augment its capabilities.

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By typing any value x into the left hand window and pressing the --f--$>$ button you can determine the value of f(x).

Using this 'oracle' function, calculate the derivative of $f$ at x=1.

$f'(1) =$ You can use a [ the link to 'calculator' is broken ]

You can view the source for this problem. or consult the documentation for more details on the PG language.