Phil questions

• Special Operators Definition in Mathematica
• Efficient way to pick/delete a list of rows/columns in a matrix in Mathematica
• Function types declarations in Mathematica
• Defining a function with an optional value that is by default a function of another paramether of the function in mathematica
• Is there a function head in mathematica that can be used to define an input type?
• Automatically saving notebook (or other type files in mathematica) files
• Simple way to delete a matrix column in Mathematica
• Using Array and Table Functions in Mathematica. Which is best when

Phil answers