Maple 2016 includes better user controls of math in documents. You can now toggle a 2-D expression, which by default is executable math, to nonexecutable math.

Alternatively, use the shortcut key Shift + F5 or, under the Edit menu, clear the check box beside Executable Math.

When editing a 2-D math expression, executable math is displayed with a blue background, such as:

Nonexecutable math is displayed with a gray background:

Use nonexecutable math for expressions that are only for display purposes, that you do not want to execute. Often these are mathematical formulas which are not valid Maple syntax. If an expression, such as $\sum \mathrm{x\_\_i}$, is executed accidentally, it can lead to error messages or unwanted output. If this happens, toggling the expression to nonexecutable math removes the error message or output and changes the math to nonexecutable.

Maple 2016 enhances 2-D math equation editing by displaying a visible multiplication symbol ($\cdot$) between side-by-side closing and opening parentheses. For example, if you write $\left(f\+g\right) \left(x\,y\right)$, Maple inserts the multiplication symbol:

This makes it clear that the expression with adjacent parentheses is interpreted as multiplication. This change is designed to help you avoid common errors in writing expressions and troubleshoot your work more quickly.

If you did not mean multiplication (for example you meant to apply the functions $f\+g$ to $x\,y \)$, delete the dot.

Multiplication:

$\left(f\+g\right)\cdot \left(x\,y\right)$

Function application:

$\left(f\+g\right)\left(x\,y\right)$

You can control whether an expression with adjacent parentheses in 2-D math is interpreted to mean multiplication or function application. For details, see the Smart Operators section of the Options dialog.

For more details about these and other features of 2-D math, see 2-D Math Details.

The icons for zooming on the main toolbar have been changed to Zoom In, Zoom Out, and Default Zoom ( ), respectively. Previously, there were three icons that set the zoom level to 100%, 150%, or 200%.

The current zoom level is now shown in the status bar at the bottom of the Maple window.

The hotkey Ctrl + 0 has been changed from setting the zoom level to 50% to setting the current zoom level to the default zoom level. Other previous behavior, such as the ability to use Ctrl + 1, Ctrl + 2, ... to set a defined zoom level, is unchanged. Similarly, the ability to zoom in or out using the combination Ctrl + Mouse Scroll wheel is also unchanged.

Another change for zoom is that the zoom level is no longer stored in the Maple worksheet. Any worksheet that is opened in a Maple session is now opened to the zoom level as set in the Tools menu > Options... > Interface tab > Default Zoom (Windows and Linux) or Maple 2016 menu > Preferences > Options Dialog  > Default Zoom level (Mac).

For more information on zoom levels, see Maple Preferences or for more comprehensive shortcut key lists by platform, see lists for Windows, Mac, and Linux.

The display of interior and exterior table borders can be optionally turned off in Maple worksheets using the Table Properties dialog. When borders are turned off, Maple provides a worksheet-level setting to control the display of "invisible" borders when hovering over a table with the mouse (View > Show/Hide Contents > Hidden Table Borders ).  However, there can be cases where it is desirable to set the table border visibility on a per table basis. As such, table borders can be changed using the following options found in the Table Properties dialog:

For Mac users, Maple can now be used in full screen mode. To switch to full screen mode, select View > Full Screen Mode or use the shortcut key for toggling full screen mode, Control + Command + F.

Sections are one of the main tools to control the flow of content in a Maple document. Maple 2016 offers a new optional way to display a section. By default, sections are delimited with an arrow beside the section heading and a line along the left border. The section is collapsible by clicking the arrow or line.

If preferred, you can change the look so sections are not collapsible and no visible delimiter is shown. From the context-sensitive menu, select Section > Hide arrow and stay expanded.

The help pages use this setting.

It is now possible to insert rows and columns into Matrices using the context-sensitive menu for 2-D math input.  Previously, a new row or column could only be added to an existing matrix using the Ctrl + Shift + R (row) or Ctrl + Shift + C (column) shortcut keys. Right-click on a matrix and look for the context menu options Insert Column and Insert Row.

Many more commands are now available in the context menu, including operations for number theory, multivariate calculus, and more.

Four new entries in the File > New submenu pertain to content inside of a Workbook:

Under the Edit menu, the new entry Executable Math enables toggling between executable and nonexecutable math.

For ease of use, some menu items have been rearranged.  All menu items pertaining to Document Blocks are now found under Edit > Document Blocks. One menu item has a new name: Expand Document Block is now Show Command.

This new submenu also includes the following menu items that were previously found under other menus:

A new menu item for Mac users puts Maple in Full Screen Mode.

The View > Workbook Navigator submenu collects all commands relevant to the display of content in Workbook Navigator palette.