Basic Plotting Options for Graphics Redrawing and Combining Plots
An image is equivalent to its symbolic expression. You can operate on an image as you would on a symbolic expression. This input produces some disks. Type // InputForm after ...
Mathematica usually keeps the elements of a list in exactly the order you originally entered them. If you want to treat a Mathematica list like a mathematical set, however, ...
You can use lists as tables of values. You can generate the tables, for example, by evaluating an expression for a sequence of different parameter values. This gives a table ...
Functions for manipulating files. Different operating systems have different commands for manipulating files. Mathematica provides a simple set of file manipulation ...
Functions to pick out pieces of polynomials. Here is an algebraic expression. This gives the coefficient of x in e.
Relational operators. This tests whether 10 is less than 7. The result is False. Not all of these numbers are unequal, so this gives False.
Simplifying with assumptions. Mathematica does not automatically simplify this, since it is only true for some values of x. Sqrt[x^2] is equal to x for x≥0, but not otherwise.
Properties of Strings Operations on Strings Characters in Strings
Like everything else in Mathematica the textual forms of expressions can themselves be represented as expressions. Textual forms that consist of one-dimensional sequences of ...