EquatIO is a Google math extension allowing the option to:
dictate equations and formulas and turning spoken input into a written expression
write math problems by hand on a device and having EquatIO convert it to a typed mathematical expression
enter any expression into the graphing calculator tool of EquatIO and see it plotted instantly
type out math, chemistry, and full formulas and symbols using Math Prediction (premium version)
insert equations and formulas directly into Slides, Forms, Sheets, and Drawings using the dictation, Math Prediction, and/or handwriting features of EquatIO (premium version)
EquatIO can now interact with PDFs by opening a PDF doc with Texthelp PDF Reader (see Writing folder: Read&Write: Texthelp PDF Reader in how to access) premium version.
In other words, for students who struggle to complete math problems on paper, this extension enables them to use keyboard or touchpad on computer to generate text, then translates it into a Google Doc. EquatIO also includes predictive features to reduce the amount of typing and writing needed to solve equations.
The full premium version of EquatIO is now free for educators by going to: http//www.texthelp.com/freeforteachers. However, the premium extension for students is presently $100/student access. Note: The premium version of Read&Write for Google is available on all student and teacher devices, allowing access to the Texthelp PDF Reader.
The free version of EquatIO can be added to Chrome from the Chrome Web Store.
To access EquatIO once it has added to Chrome, open up a google doc of math problems, click the EquatIO icon and select one of the tools or the Settings box from the toolbar.
EquatIO Menu - With the menu open, you can change the font size and the prediction settings
Equation Editor - Allows you to enter math and science content by typing in letters and numbers as you normally would. With the Math Predictions turned on, you can type in just one or two first letters of a math term and EquatIO will pop up matching predictions and once selected will insert the symbol. Once you have finished, tap on the Insert button to send up to your document.
For example
Other examples of Math Predictions that will pop up and insert once you type in the first two letters of a desired math:
sq - squared/square root
cu - cubed/cubed root
pi - pi symbol
ex - exponent
pl - plus/plus or minus
di - division/divide by
ex - exponent
qu - 1/4/quantity()/ quadratic formula
With Equation Editor open, symbols may also be selected by clicking on one of the options in symbol galleries (bottom right corner) and choosing a symbol to insert. The symbol galleries include:
With the Chemistry Prediction turned, typing in part of any chemical formula will pop-up matching predictions as well.
For example: Typing in “hy”, will elicit a pop-up that you can choose from and insert.
See the section, "New EquatIO Keyboard Shortcuts", to learn the new keystrokes that allow multiple lines of mathematical expressions when using Equation Editor and Speech Input.
Handwriting Recognition - Using a touchscreen, mathematical expressions can be drawn using either your finger or a stylus. As you write on the left, EquatIO automatically converts it to symbols. If you need more room to write, drag the Panel (see above) up to expand the EquatIO box.
Speech Input - Once the speech input icon is clicked, tap on the microphone button to start speech input. As you speak in a mathematical expression, EquatIO will convert it automatically into mathematical symbols (see example below). Tap the Insert Math button to send up to your document.
Keyboard Shortcuts -> Result
Shift-Enter -> New line in Equation Editor
Ctrl-Shift-Enter -> Copy current line and paste into a new line in Equation Editor
Shift-Space -> Create a new column and align vertically
/ -> Create a fraction with the previous term in the numerator
\text TAB -> Toggle to text mode
Highlight selection then type \sqrt -> Put selection inside of a square root
Article below Inserted from: <https://support.texthelp.com/help/creating-and-inserting-basic-mathematical-expressions-without-prediction>
To insert an exponent, use the caret (^) symbol to move your cursor up to the exponent slot, where you can then insert your exponent. Once you are finished, use the right arrow key (⇨) to move out of the exponent slot and continue typing your equation.
So let’s say we want to show the Pythagorean Theorem:
For subscript, use the underscore (_) key to enter your subscript. Use your right arrow key (⇨) again when finished typing your subscript, to finish the rest of your equation.
So for example we can write out the chemical formula of a water molecule:
To insert a simple fraction, just type the numerator, press the / key, then type the denominator. Use the right arrow key (⇨) to continue typing the rest of your equation.
So if we wanted to add several fractions together, it would look like this:
We can also add a bit more complexity to these fractions by adding multiple terms to the numerator or denominator.
To do this, just type your numerator, highlight or select it, and then press the / key to insert the fraction.
When you’re done typing the terms in your denominator, use the right arrow key (⇨) to move on to the rest of your equation.
To insert a square root, just type \sqrt and then the Enter or Tab key to insert the square root symbol. Then just type the number or expression you want to include under the square root. Use the Enter key when finished to continue typing the rest of your equation.
So for example if we want to write the square root of 16, it would look like this:
\div = division sign
\times = multiplication sign
\cdot = dot multiplication sign
\pi = pi symbol
Greek symbols
\sqrt[3] = cube root
\sqrt[n] = nth root