Your calculator has any features such as: touching to edit number and operator, reusing previous calculation result for the next calculation, sharing and storing result with note app? —> Calc can do all of them. Calc is the special calculation app. It is the smartest and the most powerful until now. Besides, the interface was designed user-friendly with flat style, and more beautiful themes. Specific features compared with other apps: ★ Calculate numbers with operators and display each calculation on one line, you can take a look at all of your calculations. ★ Reuse the previous result for continuing to calculate. ★ Allow editing numbers and operators when you input incorrect them at any position. ★ Update calculation ’s result automatically in concern with edited numbers or operators, reduce effort for calculating. ★ Share the calculation ’s history for your friend easily, or store it with some note ’s apps. ★ Store calculation ’s history for continuing to calculate later. ★ More themes are suitable for your interests. (Material design, Android L Theme...)

https://play.google.com/store/apps/details?id=mobi.appplus.calculator.plus&hl=ja