Hello again. (It’s been quite a few years since I last posted.)

I’d like to have WeBWorK exercises asking (developmental math) students to translate expressions with rational exponents (such as “x^(1/n)”) into equivalent expressions with radicals, what LaTeX would show for “\sqrt[n]{x}”).

In the xyzhomework.com system (an implementation of the MyOpenMath homework system), we could ask students to input the “radical form” via either MathQuill (an online math expression editor) or by entering “root(n)(x)”. How can I code a similar WeBWorK exercise?

I’m looking for fairly direct translations, not simplifications, so that “1/sqrt(3)” is the expected acceptable expression for “3^(-1/2)”. But I don’t want the student to get credit for simply copying the expression with rational exponents—s/he needs to designate the appropriate radical.

Cheers.

Bruce Yoshiwara