Today, when I was sitting at the seminar, I needed to run a small program, only the phone and opera mini were at hand. Without hesitation, I entered javascript: cod_na_js in its address bar and it worked! But you ask: "And here cloud computing?". And despite the fact that in the mini opera js calculations occur on the server side. If you wish, you can use it (for example, lay out a page with a resource-intensive script for calculations and open it in Opera mine through MicroEmulator). The result of the work is presented in the screenshot under the cut.
PS Thus, opera mini is a good calculator =) PS I do not know in which thematic blog can be transferred