Holo Cal

This is a calculator with Holo style, supports + - × ÷ lg ln ^ ( ) in the expression. You can config whether to vibrate while you press a button , you can also change the font showed on screen, it provides normal and nixie light fonts.
Characteristics:
▲“lg” and “ln” will be showed as “g” and “n” on screen.
▲After calculation, You can press the operators (+ - × ÷ lg ln ^) to inherit the last result.
▲After calculation, you can move the cursor to the last expression through pressing ← → or touching the screen to change the last expression and get the new result (Only the last expression)