Texthelp has produced a great way for you to add math equations into Google docs with their tool called Equatio. This tool can be added for free into Chrome Browser from the Google Play Store. The paid version gives even more power to this amazing tool. Let’s look at the five free areas. Once you install it, it appears on the toolbar to the left of the address bar in Chrome.
After you open a blank Google doc, select the icon for Equation which appears beside the address bar in the browser after installation.
Once that occurs, you’ll see the following tools at the bottom of your screen:
1 Equation Editor
This tools is designed to allow you to type in equations and to select mathematical symbols, operators and even Greek letters.
You may type standard numbers, letter and any other content from your keyboard into the text field. But to help you generate mathematical expressions. These are selected from for tools.
As you can see from the graphic to the right, you can insert division, multiplication greater than or equals and many other operators into your math equations. One the populate the field, you can select individual letters or numbers in the expression and change them to something you can type.
Additional operators or symbols can be found to the right. Here is the whole list. It includes union and intersect, equivalent, plus or minus degree, etc. These symbols you cannot alter.
Math expressions that are frequently used appear in the functions panel:
Its all greek to me, but below you will see the selection you have for adding greek letters to your equations:
2 Latex Editor
Here is a description of LaTeX Taken from Wikipedia:
LaTeX is widely used in academia for the communication and publication of scientific documents in many fields, including mathematics, statistics, computer science, engineering, chemistry, physics, economics, linguistics, quantitative psychology, philosophy, and political science. It also has a prominent role in the preparation and publication of books and articles that contain complex multilingual materials, such as Tamil, Sanskrit and Greek. LaTeX uses the TeX typesetting program for formatting its output, and is itself written in the TeX macro language.
So for those who know how to use it, this enables the preparation of mathematical expression by using conventions of LaTeX.
Here is an example:
You see if you type a^(2)+4ab-2b^(2) converts to the math expression we want in our Google doc.
By the way, as a side note, you can learn a lot about LaTex by reversing math expression. I usually just use the handwriting tool to generate the math expression, and then return to LaTeX editor to see how it is type with LaTex.
3 Graphic Editor
With this tool you are able to plot math expression in graphical forms.
Here I’ve plotted 4 sin (x)
This tool allows you to use you mouse to write mathematical expressions. Basically you will see this (always clear out previous math expression before using the tool.
Of course the quality of your handwritten expression is important here (also note that in the free version you are limited to how many times you can use this tool to insert math into Google docs).
But when converted, here is what I found in the math window:
Now we are about to enter a very cool are that I had never seen before. That is adding math content using your voice. Speech to text has been around for a while, but not for speaking mathematical expressions.
This is a tool you have to see to believe. Of course you have to know how to read mathematical expressions for this to work well. A misreading of a fraction will give you a poor result for example.
If you’d like to learn more, I’ve made a video that demonstrates these features and shows how math inserted into a google document can be read by TextHelp’s Read and Write tool: