**Math ASCII Notation**

Mathematical content on *Apronus.com* is presented in
*Math ASCII Notation*
which can be properly displayed by all Web browsers
because it uses only the basic set of characters
found on all keyboards and in all fonts.

The purpose of this page is to demonstrate the power of the *Math ASCII Notation*.
In principle, it can be used to write mathematical content of any complexity.
In practice, its limits can be seen when trying to write complicated formulas
(containing, for example, variables with many indexes or multiple integrals).

Despite its limitations the Math ASCII Notation has much expressive power,
as can be seen from browsing through this page, which displays the full contents of
the mathematical *SuperMemo collection* called *MRWmath*.

*SuperMemo* is a computer program designed for
assisting you in your learning process.
When you use SuperMemo you translate your knowledge into
question-answer pairs
and append such pairs into your *SuperMemo collection*.
When you use the program to review your knowledge
it shows you the questions and you are supposed to recall the answers.

If you want to use SuperMemo to help you learn mathematics you face the problem of translating mathematical notation into some format that this program can display. The same problem faces every Web publisher who wants to present mathematical content on his Web pages.

However, the ability to display the content is not the only constraint on choosing a format. It is also essential how easy it is to write the content on your computer. For example, if you were to express your mathematical knowledge in some hard-to-type format to put it into your SuperMemo collection, your learning process would be slowed down rather than accelerated.

It is possible that many mathematicians shy away from publishing mathematical content on the Internet because they are scared off by the trouble of encoding mathematical notation for viewing in a Web browser.

This is where *Math ASCII Notation* comes in.
It is easy to type on every keyboard and it can be displayed
by every computer program which can display text.

**MRWmath**

The SuperMemo collection *MRWmath* presented below
has about 1500
question-answer pairs.
You can browse through it to see if this way of writing math makes sense to you.
It is presented on 99 pages, each page containing 10 items.