<p class="ImageButton" content-desc="tangent" resource-id="fun_tan" ></p>
<p class="ImageButton" content-desc="show inverse functions" resource-id="toggle_inv" ></p>
<p class="ImageButton" content-desc="Euler's number" resource-id="const_e" ></p>
<p class="ImageButton" content-desc="natural logarithm" resource-id="fun_ln" ></p>
<p class="ImageButton" content-desc="logarithm" resource-id="fun_log" ></p>
<p class="ImageButton" content-desc="clear" resource-id="clr" ></p>
<p class="ImageButton" content-desc="left or right parenthesis" resource-id="parens" ></p>
<p class="ImageButton" content-desc="percent" resource-id="op_pct" ></p>
Tangent ImageButton is displayed
Show Inverse Functions ImageButton is visible
Euler's Number ImageButton is visible
Natural Logarithm ImageButton is seen
Logarithm ImageButton is seen
Clear ImageButton is shown
Left or Right Parenthesis ImageButton is visible
Percent ImageButton is visible