The Show command displays the current state of a single problem or all problems from the current Maple session.  The display is accomplished using calls to print; the value returned by Show is NULL.  Thus, the history variables, %, %%, and %%%, are not modified by this command.

If called with no arguments, the problem  designated the current problem is displayed. To designate a problem the current problem, create a new problem (see Rule or Hint) or use the GetProblem command.

If expr is a positive integer, the corresponding problem is displayed.

If expr is a subproblem label (see ShowIncomplete), the current state of the corresponding subproblem is displayed.  This subproblem need not be a subproblem of the current problem.

Note: Treat subproblem labels as temporary objects because the application of a rule to a problem can change the underlying problem representation, and hence the subproblem labels.  It is recommended that you call ShowIncomplete to verify the value of a label before passing it to Show.

If expr is the keyword all, the current states of all problems from the current session are displayed.  Note: Problems that have been cleared by a call to Clear are not displayed.

If expr is the output from a previous call to Rule or GetProblem (with the internal option), or the left-hand side of such output, the current state of that problem is displayed.

This command does not change which problem is designated the current problem.

$\mathrm{with}\left(\mathrm{Student}\left[\mathrm{Calculus1}\right]\right)\:$

$\mathrm{infolevel}\left[\mathrm{Student}\left[\mathrm{Calculus1}\right]\right]≔1\:$

$\mathrm{Rule}\left[\mathrm{`+`}\right]\left(\mathrm{Diff}\left(x^2+x\,x\right)\right)$

Creating problem #1

$\frac{\ⅆ}{\ⅆx}\left(x^2+x\right)=\frac{\ⅆ}{\ⅆx}\left(x^2\right)+\frac{\ⅆx}{\ⅆx}$

$\mathrm{Rule}\left[\mathrm{`^`}\right]\left(\mathrm{Int}\left(x^3\,x\right)\right)$

Creating problem #2

$\int x^3\ⅆx=\frac{x^4}{4}$

$\mathrm{Show}\left(\right)$

$\int x^3\ⅆx=\frac{x^4}{4}$

$\mathrm{Show}\left(1\right)$

$\frac{\ⅆ}{\ⅆx}\left(x^2+x\right)=\frac{\ⅆ}{\ⅆx}\left(x^2\right)+\frac{\ⅆx}{\ⅆx}$

$\mathrm{ShowIncomplete}\left(1\right)$

$\mathrm{Diff2}=\frac{\ⅆ}{\ⅆx}\left(x^2\right)$

$\mathrm{Diff3}=\frac{\ⅆx}{\ⅆx}$

$\mathrm{Show}\left(\mathrm{\%Diff3}\right)$

Problem 1:

$\frac{\ⅆx}{\ⅆx}$

$\mathrm{Rule}\left[\mathrm{`*`}\right]\left(\mathrm{Limit}\left(x\exp \left(x\right)\,x=0\,\mathrm{right}\right)\right)$

Creating problem #3

$\underset{x\to 0+}{lim}x{\ⅇ}^x=\left(\underset{x\to 0+}{lim}x\right)\left(\underset{x\to 0+}{lim}{\ⅇ}^x\right)$

$\mathrm{Clear}\left(1\right)$

Problem #1 has been cleared

$\mathrm{Show}\left(\mathrm{all}\right)$

Problem 2:

$\int x^3\ⅆx=\frac{x^4}{4}$

Problem 3:

$\underset{x\to 0+}{lim}x{\ⅇ}^x=\left(\underset{x\to 0+}{lim}x\right)\left(\underset{x\to 0+}{lim}{\ⅇ}^x\right)$