Phenquestions
Depending on what you do, what you buy and where you go, you may come into situations where formulas can come in quite handy.
If you live in the US and plan your next trip to go outside the country for example, you may need to convert Fahrenheit to Celsius, or Miles to Kilometers to understand what is going on.
The same may be true if you are currently in high school, a scientist or in another profession that uses or even depends on formulas.
Need to calculate the Energy by mass and light speed, impulse by force and time, or heat transfer by mass?
While you could learn those formulas and make calculations on paper or using a calculator, the Android application Formula Calculator Equreka offers an alternative that should be attractive to many.
The app requires no special permissions and is compatible with all devices running at least Android 4.0.
The first time you start it up after installation it will download 500 formulas that it ships with. You can use search to find formulas of interest and add them to your favorites for fast access.
Once you have located a formula of interest simply tap on it to display it on the next page. There you enter values and get results displayed.
Filters are provided to include only select formulas in the search results and while you are browsing. If you are not interested in finance or photovoltaic for example, you can disable those so that they won't show up.
What makes Formula Calculator Equreka special is its formula creator. The 500 or so equations it ships with are fine and a great start, but the editor improves the app significantly as you can create your own equations for use.
You create the equation on the first screen, for instance a / 1000 to calculate Kilometers in Meters. As you can see on the screenshot above, you get a lot of different functions and options to create your equation.
You are then asked to add a name for the equation, tag it (optional) and add descriptors for variables and the result so that you know what they are.
There you can also test the equation to make sure it is working correctly. Saved equations can be accessed with a tap on the people icon in the main interface.
Verdict
Formula Calculator Equreka is a great Android app. It requires no additional permissions, ships with more than 500 equations and provides you with the means to create and save your own as well.
