DifferentialD[x] displays as \[DifferentialD]x.
Exit
(Built-in Mathematica Symbol) Exit[] terminates a Mathematica kernel session.
LocalizeVariables is an option to Manipulate that determines whether the values of variables associated with controls should be localized.
None
(Built-in Mathematica Symbol) None is a setting used for certain options.
ShowSelection is an option to Notebook, Cell, and Style that specifies whether to show the current selection highlighted.
WriteString[channel, expr_1, expr_2, ...] converts the expr_i to strings, and then writes them in sequence to the specified output channel.
It may happen that a given ODE is not linear in y(x) but can be viewed as a linear ODE in x(y). In this case, it is said to be an inverse linear ODE. This is an inverse ...
Getting Information about Mathematica Objects Warnings and Messages Interrupting Calculations
The Structure of Mathematica Notebook Interfaces Using a Text-Based Interface
Mathematica Internet Connectivity Notebook Security Sending Email