# 2.1 The basics

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This module provides a basic user's guide to Connexions' MathML editor. In it you will learn how to access the editor, how to create, edit, and delete MathML expressions using the editor, and how to insert the MathML code into a module.

## Overview

This module covers some basic points of Connexions' MathML editor, now in beta testing. It is organized as a tutorial and will lead you through basic usage of the editor, though you can skip around the sections if you wish. The tutorial covers:

• how to access and use the editor
• how to create MathML expressions
• how to navigate through the structure of an expression
• how to edit expressions
• how to insert expressions created in the editor into a module
• how to delete expressions
• how to use the menu buttons to create and edit expressions

You will learn how to create the expression $ax^{2}+bx+c$ using keyboard input and also using the toolbar menus .

You will also learn about the basic layout of the MathML editor, the context of your cursor within the editing area, and how to select or highlight part or all of the MathML within the editor with key strokes or the mouse.

All of these aspects of the editor and more are covered in more detail in the MathML Editor: Manual .

## Accessing the editor

Currently, the MathML editor is only supported in Mozilla Firefox . If you use Internet Explorer or another browser, you can download Firefox for free under the link.

When editing a module using Mozilla's Firefox browser, click on an element within the module to open a blue editing box .

On the top-right hand side of the box is a "MathML Editor" link which will open up the editor .

The popup window can remain open while editing a module and can even stay open while editing several modules. At any point one can close the window, but the contents of the editor will be lost.

The editor has two main sections: the toolbar and the main editing area .

The toolbar consists of

• a Menu containing mathematical operators
• buttons for Undo/Redo
• a Preview button, which will display the math as it will look in a published module
• and a View Source button, which displays the raw MathML code

The editing area is the main area for creating math. It begins empty, but math can be pasted directly in here from Connexions, or created on the spot by either typing in expressions or using the toolbars. See the section Inserting expressions into a module below for how to move math from Connexions to the math editor and back.

## Creating expressions

When you first open the MathML editor, the Editing area should have one blank box in it, called a " block ". A block is an empty slot that can be filled with a number, variable, or longer expression consisting of at least one operator and its associated arguments.

Click inside of it to place your cursor inside the empty block.

There are two ways to insert math using the keyboard. The simplest way is to use keyboard shorthand notations for operators. These exist for simple algebra notations, and are similar to the buttons on a calculator (for instance, * for multiplication, - for negative or minus). A full list of Keyboard shortcuts is located here .

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is this allso about nanoscale material
Almas
are nano particles real
yeah
Joseph
Hello, if I study Physics teacher in bachelor, can I study Nanotechnology in master?
no can't
Lohitha
where is the latest information on a no technology how can I find it
William
currently
William
where we get a research paper on Nano chemistry....?
nanopartical of organic/inorganic / physical chemistry , pdf / thesis / review
Ali
what are the products of Nano chemistry?
There are lots of products of nano chemistry... Like nano coatings.....carbon fiber.. And lots of others..
learn
Even nanotechnology is pretty much all about chemistry... Its the chemistry on quantum or atomic level
learn
da
no nanotechnology is also a part of physics and maths it requires angle formulas and some pressure regarding concepts
Bhagvanji
hey
Giriraj
Preparation and Applications of Nanomaterial for Drug Delivery
revolt
da
Application of nanotechnology in medicine
has a lot of application modern world
Kamaluddeen
yes
narayan
what is variations in raman spectra for nanomaterials
ya I also want to know the raman spectra
Bhagvanji
I only see partial conversation and what's the question here!
what about nanotechnology for water purification
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Damian
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Professor
I think
Professor
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Alexandre
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Rafiq
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Damian
How we are making nano material?
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LITNING
scanning tunneling microscope
Sahil
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Santosh
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Rafiq
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Mahi
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Rafiq
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
Anam
analytical skills graphene is prepared to kill any type viruses .
Anam
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
Hafiz
what is Nano technology ?
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
how did you get the value of 2000N.What calculations are needed to arrive at it
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