Math-o-mir Equation Editor and Math Notepad

One of my most recent digs is the Math-o-mir equation which I think will be very useful to math teachers and students. It is a tool designed as an equation editor or a notepad. According to its official website, its goal is “to achieve the same level of simplicity as with pencil and a sheet of paper.” It has some unique features which are not found in other equation editor or math notepad. Below are some of its features.

1. Edit math equations easily using mouse or keyboard

math-o-mir equations

2. Perform sketching and drawing using simple hand drawing tools

math-o-mir hand drawing

3. Perform simple numerical and symbolic calculation » Read more

Plot Functions with Google Search

Google has recently added a graphing functionality to its search engine. You can now plot functions in Google’s search engine as shown below.  The graphs can be panned and zoomed.
You can also graph multiple functions using commas.  The graphs above were generated by typing x^2, x, sin(x), ln(x) in the search engine. Google is capable of graphing single variable functions including trigonometric, exponential, and logarithmic functions as well as their compositions.

Source: Inside Search