Partial Differential Equation Toolbox

Display Additional Information

In Mesh mode, you can use the mouse to display the node number and the triangle number at the position where you click. Press the left mouse button to display the node number on the information line. Press the middle mouse button (or use the left mouse button and the Shift key) to display the triangle number on the information line.

In Plot mode, you can use the mouse to display the numerical value of the plotted property at the position where you click. Press the left mouse button to display the triangle number and the value of the plotted property on the information line.

The information remains on the information line until you release the mouse button.

Entering Parameter Values as MATLAB Expressions

When entering parameter values, e.g., as a function of x and y, the entered string must be a MATLAB expression to be evaluated for x and y defined on the current mesh, i.e., x and y are MATLAB row vectors. For example, the function 4 x y should be entered as 4*x.*y and not as 4*x*y, which normally is not a valid MATLAB expression.

Using Earlier Version PDE Toolbox Model M-Files

You can convert Model M-files created using an earlier version of the PDE Toolbox for use with the current versions of MATLAB and the PDE Toolbox. The old Model M-files cannot be used directly in the current version of the PDE Toolbox.

To convert your old Model M-files, use the conversion utility pdemdlcv. For example, to convert a Model M-file called model42.m to a compatible Model M-file called model5.m, type the following at the MATLAB command line:

• pdemdlcv model42 model5
  

Object Selection Methods

Using Command-Line Functions